Is your feature request related to a problem? Please describe.
Yes. The pickup and trash upgrade to the backpack do not work with the simple Auto Pickup mod enabled: https://modrinth.com/mod/simple-autopickup

Describe the solution you'd like
It would be nice if this was fixed, although I am nor reporting it as a bug because it's just an incompatibility. It would be nice to have Auto Pickup inseret the items in the inventory, much like the magnet upgrade already do, without breaking the rest of the functionalities from the other upgrades.

Describe alternatives you've considered
The only alternative is disabling the mod. Without it, the backpack works perfectly.

Additional context
The log doesn't contain useful info as to why, but I can add it if needed.