Rhino files are opening as "read only"

So some of my rhino files are opening with a read only warning now. I clicked ok. But I was able to edit things “Not read only” So I thought nothing of it. Put in a few days worth of work… they did not save. This is detrimental.

Please help me understand / fix this issue.

System Info.txt (4.6 KB)

I would share the file, but it says it’s too big.