Hey, thanks for the report. This is a known intermittent issue the team is actively working on.
Workaround: use the “Keep All” button in the chat sidebar instead of the buttons in the editor. Several users reported it helps even when the editor buttons don’t respond.
To help with diagnostics, please share:
Any errors in the console? (Help → Toggle Developer Tools → Console tab)
Any patterns you’ve noticed (specific models, file types, or actions before it happens)?