In my attempt to reproduce the bug, I found some more bugs too (some of the ones you found I'm sure?), and didn't (yet) reproduce the original bug. Here's a video.
00:05: kicad warning about grid size
00:28: I reverted the eRCaGuy_Misc library, and it should have deleted the BSS138_copy part, but it didn't.
00:50: I repeatedly click on the BSS138_copy part and it won't open (probably because I reverted it?)
01:02: I revert the 2nd copy, but again, it didn't delete it.
01:16: I deleted BSS138_copy and it crashed the program.
In my attempt to reproduce the bug, I found some more bugs too (some of the ones you found I'm sure?), and didn't (yet) reproduce the original bug. Here's a video.
00:05: kicad warning about grid size
00:28: I reverted the eRCaGuy_Misc library, and it should have deleted the BSS138_copy part, but it didn't.
00:50: I repeatedly click on the BSS138_copy part and it won't open (probably because I reverted it?)
01:02: I revert the 2nd copy, but again, it didn't delete it.
01:16: I deleted BSS138_copy and it crashed the program.