I’ve tried several times but can’t find any issues at the moment.
If it still happens - can you make a video and send me the used files?
This would help to reconstruct the issue.
The only thing I can think of at the moment is that maybe the Zero function was still active and received an accidential click?
My apologies. I spent some time on it this morning and found that I could recreate the issue by Moving the first Add and clicking the Select icon (instead of pressing Esc) before Adding the second file. While clicking Select deactivates the Move and deselects the drawing, the paths remain selected. It’s possible that’s what I was doing the night before and a video would have shown that.