Yikes - code getting rolled back

I hit this last week… but now I’m pretty sure code is getting rolled back / work is being lost.

Support: please look at my “txtops-a” notebook.

The last section had 4 lines an hour ago. I downloaded a zip to save to github (I can provide that zip for comparison, if necessary). Now it’s back to one line - like it was before I started working on it a couple hours ago. Two other sections are also in their previous state.

Appreciate the help and investigation.

One possibility: I may have had another tab open with older code.

I just opened up my iPad, which had an even older version - and that just auto-saved on top of the previous rolled back version. So now my code is even older.

Might want to put in a safety to not allow auto-saving of code if it’s out-of-date.