1.
I have received your video. You are talking about the
File Chooser. If you click on
Select Folders, you
can only a Select Folders. If you click on
Select Files, then you
can only select Select Files. So you'll want to click on
Select Files, otherwise files will be grayed out as not selectable.
2.
Any kind of issues with the history, file system, etc would be unrelated to that. The above is just a limitation of the native file chooser, which doesn't support choosing both files and folders at the same time.
3.
MasterCATZ wrote: ↑21 Apr 2020, 21:24
what ever file was being worked on when I cancelled did not get recorded, but it seemed to successfully complete the move before stopping
It seems that
"cancelled" would be an important keyword that probably should have been mentioned right away, don't you think?

Depending on how you "cancel", clicking on
Cancel in the progress dialog, and just killing FileBot, that could make a difference.

Depending on your selected
Rename action, and underlying OS and filesystem implementation, FileBot may not be able to cancel operations. FileBot can only politely request the underlying operation to be cancelled. I suppose there is room for strange race conditions, especially if exotic file systems are involved.
EDIT:
I've reviewed the code. If the rename action succeeds, then an entry will be added to the history, and items in the GUI will be removed based on that. If an item is not removed from the GUI, then FileBot thinks the rename action failed, which means underlying platform reported a failure, so not much we can do about that if that's not actually the case. If debug logging is enabled, then there might be relevant logging.