Hey, thanks for the report. This sounds like a classic MCP state/init issue the team is already working on. Some fixes shipped on May 5, but your build 3.2.21 from May 3 doesn’t include them. First thing to try is updating to the latest version via Help > Check for Updates, then see if it still happens.
If it still happens after the update, we’ll need a bit of diagnostics to narrow it down:
Next time the MCPs disappear, open View > Output, switch the dropdown in the top right of the panel to MCP and also Window, then copy the last 50 to 100 lines and paste them here.
A screenshot of Cursor Settings > Tools at the moment the plugins are missing. Are they visible at all, and what state do they show, like Connected, Error, or empty.
What usually happens right before it breaks, like sleep or wake, network drop, long uptime, switching projects.
Which MCPs you have installed, both marketplace and any custom ones from .cursor/mcp.json.
That should be enough to pinpoint the exact code path.