Hey, thanks for the report. This is a known issue: MCP servers connect, but the agent can’t see their tools.
There’s a main thread about the same problem here: MCP tools missing after latest Cursor update (works in 2.3.34)
A few users have already confirmed the bug there. It started in 2.3.41 and still reproduces in 2.4.21. The team is aware, and your report will help with prioritization.