I suppose I'll share my experiences with this.
To my knowledge, it's a fairly well known bug. The frozen-in-place with duplicates, that is. If you crash while crafting clothes, you'll come back frozen in place with a duplicate of the armor being crafted, which is then impossible to remove by hand from your inventory. It requires DM intervention to remove the extra item, though usually you can just rest to fix the frozen-in-place. I'm not even sure if you have to actually go all the way through the rest, maybe just initiate it?
Now, if this is happening frequently to you, at the same point, the big part of this is figuring out what is causing you to crash in the first place, which should be left to others...since I have no clue.