Version: 1.16.5
StorageDrawers: 1.16.3-8.3.0
Forge: 1.16.5-forge-36.2.8
PrettyPipes-1.9.5

When storageDrawers drawer is connected to pipe from pretty pipes (without any filtering) and drawers have upgrade Void. Then when max amount of item is in drawers and next comes up, there is a chance that drawer inventory go to negative number. Im not entirly sure how to reproduce this as it is always happening to us when we setup system and come another RL day then drawers with void are messed up.
Then there are 2 scenarios:

1. First one is that number go negative and when you add next item it go to zero and then its fine for next day.
2. second one is that when it is negative and you add next item, the count go to maximum number 7milion something.

Issue dont exist when pipe is connected to controller or slave controller. We setup it like 3 days ago and till now it is ok.

I found this is easy to replicate on Create: above and beyond 1.1 by creating a feedback loop. By putting a pretty pipe extraction module 3 on the bottom pipe and void upgrade on the top drawer. The inventory of the top drawer will roll over to the full or negative or no display but items are still pulled by the smart chute. You have to start out with 2-3 stacks to get this going. This makes for an easy item dupe.