0.46.7 Docker on Windows - Agent/Sonnet3.7 - writing files to the container

I just had a weird experience and it happened once before, but I blamed myself… but now Sonnet3.7 was writing all the files.

The issue is that the files were saved to the filesystem of the container, not the actual filesystem outside the container. This project has been fine for a few months, this is a new thing. I was to rebuild the container - or even restart it - all the files would be lost.

Luckily this time I caught it. Any thoughts? Any way to protect against this??

Thanks - otherwise 0.46.7 is freaking awesome.