Any time you shift + click items into a chest with a hopper below, the game crashes. This is using the latest version of the mod for 1.20.

Same thing here. Disabling the mod makes it not crash. Minecraft gives out this error : Error: java.lang.StackOverflowError: Rendering screen

+1

it also happens when dragging to a chest with a hopper with inventory control tweaks and ive always ran them both together and it seems like a rare occurrence. heres my report https://bytebin.lucko.me/2OBvOMPoW9

Same, it can be any container on top of a hopper. Quite sad to remove it from my modpack as it is so satisfying :( Hope it's gonna be fixed soon! :)) <3

If you set the speed to like 500% I've noticed it doesn't crash as much

+1