Hello,
I was having a problem with an AC 8.1 project.
When I would go to the library manager and try to
add a folder, remove a folder, or just reload libraries,
as soon as I hit reload or done AC would immediately crash.
This happened about eight or nine times.
Just on a lark I opened the AC 8.1 project in AC 9.(demo version).
I went to the library manager and added a folder, removed a folder,
and clicked done. No crash in AC 9.
I launched AC 8.1, opened the project, went the library manager,
made the changes I wanted, clicked done, and no crash.
Somehow, AC 9 (demo version) repaired something in the file
even though the demo version has all "save" functions disabled.
So, something to try when all else fails.
Peter Devlin