Studio.firebase.google.com prototyper suddenly making lots of mistakes this week

Hi - Ive been working with the prototyper for a year, very successfully. However the last week has been very difficult, I assume you’ve done a release?

I totally understand that the AI makes mistakes, and goes down rabbit holes, so I use git to checkpoint working code, and rollback if I run into issues. That approach has been working fine for a year or so.

However this last week the prototyper isnt working anywhere near as well. It keeps on forgetting changes, re-applying changes, remembering old (disgarded) changes and applying them without any request from me.

Can I access the old version of Gemini? Am I amagining this? Have I hit some limit? I do have a couple of longish source files (3000 lines), but they are covered by a bunch of tests and the old version could cope. the new version not so ,much!!

Any ideas, comments?
Thanks
Duncan

BTW if this gets viewed by someone at google, my project is ~50,000 lines code typescript. Happy to share the project with you if it would help?

another “new” feature. When I ask for a small focused change in one area of the codebase gemini decides to reformat several code files.. Why is this suddenly happening?