Recently I had opened 181 silver catsacks and when I was half way through that number the silver catsacks had bugged out and not dropped anything. I tried to save and load a Condo Snapshot and it had just made the bugged catsacks disappear without dropping any reward.
Here is the video (Excuse the music and low audio)
Started opening catsacks @ 0:34
Catsacks started bugging out @ 0:57
Saved and loaded a snapshot and the catsacks had disappeared entirely with me trying to find them in my inventory @ 2:56