400 Error on write operations

[Igzak]

When attempting to read data, everything functions correctly. However, when MCP tries to create a new workflow or perform an action within an existing workflow (e.g., adding an element), a "400 Bad Request" error is returned. A direct curl request for the same operation executes successfully with same credentials.

n8n Version: 1.104.2

Used via RooCode v3.25.4

[dineshcsdev]

Hey, I want to work on this. Could you assign it to me?