Problems with pinning recent files

FrameMaker 17/Windows 10

I have some trouble using the option to pin recent files.

1: Trying to unpin files which have been pinned - FrameMaker crashes

2: Newly edited files should figure in the recent files list, but don´t

3: It seems it is impossible for me to unpin the files which have already been pinned using the normal interface. Is it possible to delete the list somewhere else? In an ini file or "something"?

This is the error dialog I get every time I try using the pinning feature. And I have already sent the errror report to Adobe.