Pack version: 1.0.5
Java version: 1.8.0.211 (64-bit)
Multiplayer or single player: Single player

I originally stumbled upon this by mistake. It seems that some quests, when using the hand in button (or whatever the proper name for the chest-looking icon is) some quests don't complete, allowing you to repeatedly hand them in for more and more Omnicoins (see attached screenshot for example quests). I believe that this might be an interaction with the "Refresh the Questbook" quest somehow?

This is a bug in BQM. Recommend you don't use 'turn in all' to avoid exploiting it.

@Damien-Reave you can avoid this by moving the Reload All Quests to another chapter. It's just a race condition on whether the quests will stay claimed while also running the reload command.