diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a3715ac5..cd47c09fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@
 
 ### Fixes
 
+- Fixed crashes when adding breadcrumbs on iOS/macOS. This was caused by invalid date parsing and corrupted string data in the native bridge responsible for scope sync ([#2327](https://github.com/getsentry/sentry-unity/pull/2327))
+- Fixed input handling in samples to work with old and new input system ([#2319](https://github.com/getsentry/sentry-unity/pull/2319))
 - The SDK now captures exceptions on WebGL through the logging integration instead of the incompatible log handler, providing better stack trace support . ([#2322](https://github.com/getsentry/sentry-unity/pull/2322))
 - Fixed input handling in samples to work with old and new input system. ([#2319](https://github.com/getsentry/sentry-unity/pull/2319))
 
diff --git a/package-dev/Plugins/iOS/SentryNativeBridge.m b/package-dev/Plugins/iOS/SentryNativeBridge.m
index e1e204285..be28d5a6d 100644
--- a/package-dev/Plugins/iOS/SentryNativeBridge.m
+++ b/package-dev/Plugins/iOS/SentryNativeBridge.m
@@ -6,6 +6,39 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+static NSDateFormatter *_Nullable sentry_cachedISO8601Formatter(void) {
+    static NSDateFormatter *formatter = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        formatter = [[NSDateFormatter alloc] init];
+        formatter.dateFormat = @"yyyy-MM-dd'T'HH:mm:ss'Z'";
+        formatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"UTC"];
+        formatter.locale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
+    });
+    return formatter;
+}
+
+static inline NSString *_NSStringOrNil(const char *value)
+{
+    return value ? [NSString stringWithUTF8String:value] : nil;
+}
+
+static inline NSNumber *_NSNumberOrNil(int32_t value)
+{
+    return value == 0 ? nil : @(value);
+}
+
+static inline NSNumber *_NSBoolOrNil(int8_t value)
+{
+    if (value == 0) {
+        return @NO;
+    }
+    if (value == 1) {
+        return @YES;
+    }
+    return nil;
+}
+
 // macOS only
 // On iOS, the SDK is linked statically so we don't need to dlopen() it.
 int SentryNativeBridgeLoadLibrary() { return 1; }
@@ -64,24 +97,26 @@ void SentryNativeBridgeAddBreadcrumb(
         return;
     }
 
+    NSString *timestampString = _NSStringOrNil(timestamp);
+    NSString *messageString = _NSStringOrNil(message);
+    NSString *typeString = _NSStringOrNil(type);
+    NSString *categoryString = _NSStringOrNil(category) ?: @"default"; // Category cannot be nil
+
     [SentrySDK configureScope:^(SentryScope *scope) {
         SentryBreadcrumb *breadcrumb = [[SentryBreadcrumb alloc]
             initWithLevel:level
-                 category:(category ? [NSString stringWithUTF8String:category] : nil)];
+                 category:categoryString];
 
-        if (timestamp != NULL) {
-            NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
-            [dateFormatter setDateFormat:NSCalendarIdentifierISO8601];
-            breadcrumb.timestamp =
-                [dateFormatter dateFromString:[NSString stringWithUTF8String:timestamp]];
+        if (timestampString != nil && timestampString.length > 0) {
+            breadcrumb.timestamp = [sentry_cachedISO8601Formatter() dateFromString:timestampString];
         }
 
-        if (message != NULL) {
-            breadcrumb.message = [NSString stringWithUTF8String:message];
+        if (messageString != nil) {
+            breadcrumb.message = messageString;
         }
 
-        if (type != NULL) {
-            breadcrumb.type = [NSString stringWithUTF8String:type];
+        if (typeString != nil) {
+            breadcrumb.type = typeString;
         }
 
         [scope addBreadcrumb:breadcrumb];
@@ -94,13 +129,11 @@ void SentryNativeBridgeSetExtra(const char *key, const char *value)
         return;
     }
 
+    NSString *keyString = [NSString stringWithUTF8String:key];
+    NSString *valueString = _NSStringOrNil(value);
+
     [SentrySDK configureScope:^(SentryScope *scope) {
-        if (value != NULL) {
-            [scope setExtraValue:[NSString stringWithUTF8String:value]
-                          forKey:[NSString stringWithUTF8String:key]];
-        } else {
-            [scope removeExtraForKey:[NSString stringWithUTF8String:key]];
-        }
+        [scope setExtraValue:valueString forKey:keyString];
     }];
 }
 
@@ -110,13 +143,11 @@ void SentryNativeBridgeSetTag(const char *key, const char *value)
         return;
     }
 
+    NSString *keyString = [NSString stringWithUTF8String:key];
+    NSString *valueString = _NSStringOrNil(value);
+
     [SentrySDK configureScope:^(SentryScope *scope) {
-        if (value != NULL) {
-            [scope setTagValue:[NSString stringWithUTF8String:value]
-                        forKey:[NSString stringWithUTF8String:key]];
-        } else {
-            [scope removeTagForKey:[NSString stringWithUTF8String:key]];
-        }
+        [scope setTagValue:valueString forKey:keyString];
     }];
 }
 
@@ -126,35 +157,28 @@ void SentryNativeBridgeUnsetTag(const char *key)
         return;
     }
 
-    [SentrySDK configureScope:^(
-        SentryScope *scope) { [scope removeTagForKey:[NSString stringWithUTF8String:key]]; }];
+    NSString *keyString = [NSString stringWithUTF8String:key];
+
+    [SentrySDK configureScope:^(SentryScope *scope) {
+        [scope removeTagForKey:keyString];
+    }];
 }
 
 void SentryNativeBridgeSetUser(
     const char *email, const char *userId, const char *ipAddress, const char *username)
 {
-    if (email == NULL && userId == NULL && ipAddress == NULL && username == NULL) {
-        return;
-    }
-
+    NSString *emailString = _NSStringOrNil(email);
+    NSString *userIdString = _NSStringOrNil(userId);
+    NSString *ipAddressString = _NSStringOrNil(ipAddress);
+    NSString *usernameString = _NSStringOrNil(username);
+    
     [SentrySDK configureScope:^(SentryScope *scope) {
         SentryUser *user = [[SentryUser alloc] init];
 
-        if (email != NULL) {
-            user.email = [NSString stringWithUTF8String:email];
-        }
-
-        if (userId != NULL) {
-            user.userId = [NSString stringWithUTF8String:userId];
-        }
-
-        if (ipAddress != NULL) {
-            user.ipAddress = [NSString stringWithUTF8String:ipAddress];
-        }
-
-        if (username != NULL) {
-            user.username = [NSString stringWithUTF8String:username];
-        }
+        user.email = emailString;
+        user.userId = userIdString;
+        user.ipAddress = ipAddressString;
+        user.username = usernameString;
 
         [scope setUser:user];
     }];
@@ -184,42 +208,21 @@ void SentryNativeBridgeSetTrace(const char *traceId, const char *spanId)
 
     NSString *traceIdStr = [NSString stringWithUTF8String:traceId];
     NSString *spanIdStr = [NSString stringWithUTF8String:spanId];
-    
+
     // This is a workaround to deal with SentryId living inside the Swift header
     Class sentryIdClass = NSClassFromString(@"_TtC6Sentry8SentryId");
     Class sentrySpanIdClass = NSClassFromString(@"SentrySpanId");
-    
+
     if (sentryIdClass && sentrySpanIdClass) {
         id sentryTraceId = [[sentryIdClass alloc] initWithUUIDString:traceIdStr];
         id sentrySpanId = [[sentrySpanIdClass alloc] initWithValue:spanIdStr];
-        
+
         if (sentryTraceId && sentrySpanId) {
             [PrivateSentrySDKOnly setTrace:sentryTraceId spanId:sentrySpanId];
         }
     }
 }
 
-static inline NSString *_NSStringOrNil(const char *value)
-{
-    return value ? [NSString stringWithUTF8String:value] : nil;
-}
-
-static inline NSNumber *_NSNumberOrNil(int32_t value)
-{
-    return value == 0 ? nil : @(value);
-}
-
-static inline NSNumber *_NSBoolOrNil(int8_t value)
-{
-    if (value == 0) {
-        return @NO;
-    }
-    if (value == 1) {
-        return @YES;
-    }
-    return nil;
-}
-
 void SentryNativeBridgeWriteScope( // clang-format off
     // // const char *AppStartTime,
     // const char *AppBuildType,
@@ -288,4 +291,4 @@ void SentryNativeBridgeWriteScope( // clang-format off
     }];
 }
 
-NS_ASSUME_NONNULL_END
\ No newline at end of file
+NS_ASSUME_NONNULL_END
diff --git a/package-dev/Plugins/macOS/SentryNativeBridge.m b/package-dev/Plugins/macOS/SentryNativeBridge.m
index 8156671aa..f8845abef 100644
--- a/package-dev/Plugins/macOS/SentryNativeBridge.m
+++ b/package-dev/Plugins/macOS/SentryNativeBridge.m
@@ -1,6 +1,39 @@
 #import <Foundation/Foundation.h>
 #include <dlfcn.h>
 
+static NSDateFormatter *_Nullable sentry_cachedISO8601Formatter(void) {
+    static NSDateFormatter *formatter = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        formatter = [[NSDateFormatter alloc] init];
+        [formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss'Z'"];
+        formatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"UTC"];
+        formatter.locale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
+    });
+    return formatter;
+}
+
+static inline NSString *_NSStringOrNil(const char *value)
+{
+    return value ? [NSString stringWithUTF8String:value] : nil;
+}
+
+static inline NSString *_NSNumberOrNil(int32_t value)
+{
+    return value == 0 ? nil : @(value);
+}
+
+static inline NSNumber *_NSBoolOrNil(int8_t value)
+{
+    if (value == 0) {
+        return @NO;
+    }
+    if (value == 1) {
+        return @YES;
+    }
+    return nil;
+}
+
 static int loadStatus = -1; // unitialized
 
 static Class SentrySDK;
@@ -156,27 +189,31 @@ void SentryNativeBridgeAddBreadcrumb(
         return;
     }
 
+    NSString *timestampString = _NSStringOrNil(timestamp);
+    NSString *messageString = _NSStringOrNil(message);
+    NSString *typeString = _NSStringOrNil(type);
+    NSString *categoryString = _NSStringOrNil(category) ?: @"default"; // Category cannot be nil
+
     SentryConfigureScope(^(id scope) {
         id breadcrumb = [[SentryBreadcrumb alloc] init];
 
-        if (timestamp != NULL) {
-            NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
-            [dateFormatter setDateFormat:NSCalendarIdentifierISO8601];
-            [breadcrumb
-                setValue:[dateFormatter dateFromString:[NSString stringWithUTF8String:timestamp]]
-                  forKey:@"timestamp"];
+        if (timestampString != nil && timestampString.length > 0) {
+            NSDate *date = [sentry_cachedISO8601Formatter() dateFromString:timestampString];
+            if (date != nil) {
+                [breadcrumb setValue:date forKey:@"timestamp"];
+            }
         }
 
-        if (message != NULL) {
-            [breadcrumb setValue:[NSString stringWithUTF8String:message] forKey:@"message"];
+        if (messageString != nil) {
+            [breadcrumb setValue:messageString forKey:@"message"];
         }
 
-        if (type != NULL) {
-            [breadcrumb setValue:[NSString stringWithUTF8String:type] forKey:@"type"];
+        if (typeString != nil) {
+            [breadcrumb setValue:typeString forKey:@"type"];
         }
 
-        if (category != NULL) {
-            [breadcrumb setValue:[NSString stringWithUTF8String:category] forKey:@"category"];
+        if (categoryString != nil) {
+            [breadcrumb setValue:categoryString forKey:@"category"];
         }
 
         [breadcrumb setValue:[NSNumber numberWithInt:level] forKey:@"level"];
@@ -191,15 +228,13 @@ void SentryNativeBridgeSetExtra(const char *key, const char *value)
         return;
     }
 
+    NSString *keyString = [NSString stringWithUTF8String:key];
+    NSString *valueString = _NSStringOrNil(value);
+
     SentryConfigureScope(^(id scope) {
-        if (value != NULL) {
-            [scope performSelector:@selector(setExtraValue:forKey:)
-                        withObject:[NSString stringWithUTF8String:value]
-                        withObject:[NSString stringWithUTF8String:key]];
-        } else {
-            [scope performSelector:@selector(removeExtraForKey:)
-                        withObject:[NSString stringWithUTF8String:key]];
-        }
+        [scope performSelector:@selector(setExtraValue:forKey:)
+                        withObject:valueString
+                        withObject:keyString];
     });
 }
 
@@ -209,15 +244,13 @@ void SentryNativeBridgeSetTag(const char *key, const char *value)
         return;
     }
 
+    NSString *keyString = [NSString stringWithUTF8String:key];
+    NSString *valueString = _NSStringOrNil(value);
+
     SentryConfigureScope(^(id scope) {
-        if (value != NULL) {
-            [scope performSelector:@selector(setTagValue:forKey:)
-                        withObject:[NSString stringWithUTF8String:value]
-                        withObject:[NSString stringWithUTF8String:key]];
-        } else {
-            [scope performSelector:@selector(removeTagForKey:)
-                        withObject:[NSString stringWithUTF8String:key]];
-        }
+        [scope performSelector:@selector(setTagValue:forKey:)
+                        withObject:valueString
+                        withObject:keyString];
     });
 }
 
@@ -227,38 +260,29 @@ void SentryNativeBridgeUnsetTag(const char *key)
         return;
     }
 
+    NSString *keyString = [NSString stringWithUTF8String:key];
+
     SentryConfigureScope(^(id scope) {
-        [scope performSelector:@selector(removeTagForKey:)
-                    withObject:[NSString stringWithUTF8String:key]];
+        [scope performSelector:@selector(removeTagForKey:) withObject:keyString];
     });
 }
 
 void SentryNativeBridgeSetUser(
     const char *email, const char *userId, const char *ipAddress, const char *username)
 {
-    if (email == NULL && userId == NULL && ipAddress == NULL && username == NULL) {
-        return;
-    }
+    NSString *emailString = _NSStringOrNil(email);
+    NSString *userIdString = _NSStringOrNil(userId);
+    NSString *ipAddressString = _NSStringOrNil(ipAddress);
+    NSString *usernameString = _NSStringOrNil(username);
 
     SentryConfigureScope(^(id scope) {
         id user = [[SentryUser alloc] init];
 
-        if (email != NULL) {
-            [user setValue:[NSString stringWithUTF8String:email] forKey:@"email"];
-        }
-
-        if (userId != NULL) {
-            [user setValue:[NSString stringWithUTF8String:userId] forKey:@"userId"];
-        }
-
-        if (ipAddress != NULL) {
-            [user setValue:[NSString stringWithUTF8String:ipAddress] forKey:@"ipAddress"];
-        }
-
-        if (username != NULL) {
-            [user setValue:[NSString stringWithUTF8String:username] forKey:@"username"];
-        }
-
+        [user setValue:emailString forKey:@"email"];
+        [user setValue:userIdString forKey:@"userId"];
+        [user setValue:ipAddressString forKey:@"ipAddress"];
+        [user setValue:usernameString forKey:@"username"];
+        
         [scope performSelector:@selector(setUser:) withObject:user];
     });
 }
@@ -301,27 +325,6 @@ void SentryNativeBridgeSetTrace(const char *traceId, const char *spanId)
         withObject:sentrySpanId];
 }
 
-static inline NSString *_NSStringOrNil(const char *value)
-{
-    return value ? [NSString stringWithUTF8String:value] : nil;
-}
-
-static inline NSString *_NSNumberOrNil(int32_t value)
-{
-    return value == 0 ? nil : @(value);
-}
-
-static inline NSNumber *_NSBoolOrNil(int8_t value)
-{
-    if (value == 0) {
-        return @NO;
-    }
-    if (value == 1) {
-        return @YES;
-    }
-    return nil;
-}
-
 void SentryNativeBridgeWriteScope( // clang-format off
     // // const char *AppStartTime,
     // const char *AppBuildType,
diff --git a/test/Scripts.Integration.Test/Scripts/SmokeTester.cs b/test/Scripts.Integration.Test/Scripts/SmokeTester.cs
index 0de0ead59..1cbf56009 100644
--- a/test/Scripts.Integration.Test/Scripts/SmokeTester.cs
+++ b/test/Scripts.Integration.Test/Scripts/SmokeTester.cs
@@ -195,6 +195,26 @@ private IEnumerator SmokeTestCoroutine()
         t.ExpectMessage(currentMessage, "'filename':'screenshot.jpg','attachment_type':'event.attachment'");
         t.ExpectMessageNot(currentMessage, "'length':0");
 
+        ex = new Exception("Exception & removed context test");
+        RemoveContext();
+        SentrySdk.CaptureException(ex);
+
+        // Wait for screenshot capture to complete
+        yield return null;
+
+        currentMessage++; // The exception event
+
+        t.ExpectMessage(currentMessage, "'type':'event'");
+        t.ExpectMessageNot(currentMessage, "'extra':{'extra-key':42}");
+        t.ExpectMessageNot(currentMessage, "'tag-key':'tag-value'");
+        t.ExpectMessageNot(currentMessage, "user-id");
+        t.ExpectMessageNot(currentMessage, "'length':0");
+
+        currentMessage++; // The screenshot envelope
+
+        t.ExpectMessage(currentMessage, "'filename':'screenshot.jpg','attachment_type':'event.attachment'");
+        t.ExpectMessageNot(currentMessage, "'length':0");
+        
         Debug.Log("Finished checking messages.");
 
         t.Pass();
@@ -257,6 +277,22 @@ private static void AddContext()
         });
     }
 
+    private static void RemoveContext()
+    {
+        SentrySdk.ConfigureScope((Scope scope) =>
+        {
+            scope.SetExtra("extra-key", null);
+            scope.UnsetTag("tag-key");
+            scope.User = new SentryUser
+            {
+                Username = null,
+                Email = null,
+                IpAddress = null,
+                Id = null,
+            };
+        });
+    }
+
     // CppPlugin.cpp
     [DllImport("__Internal")]
     private static extern void throw_cpp();