How to interpret the response from MCP server and context cancelled

[djalexd]

Hi,
I'm trying to connect to Atlassian MCP with SSE - https://mcp.atlassian.com/v1/sse
After figuring out oauth token, and transport starts successfully Successfully started SSE transport for atlassian, the client receives 3 lines and then it errors with context cancelled; after some time, program exist (not immediately). I'm trying to understand what is going on, is there wrong with MCP server and provided data?

This is the data I receive

event: endpoint
data: /v1/sse/message?sessionId=4ddd4609a503db44aee28aeb116947e65dcc75f245e4d6dfa83b94dacf0f3ef9
(blank line)

And the next line

SSE stream error: context canceled