Describe the bug
i think this is a bug i hide some items like the bits from chisel and bits and liquid and saved closed game loaded back up and loaded into same world and most if not all of the things are un hidden.
Steps to Reproduce

• First Step hide some stuff save closed game

• Second Step reload game load back into world look to see if its still hidden

• Minecraft:1.16.4

• Mod Loader:Forge

• RoughlyEnoughItems-Forge-5.8.4+20201115-1134

Should be fixed.

This issue is marked with stale as this issue had no activity in 60 days. This issue will not be automatically closed.

Thanks for reporting, can you share your REI config data, it is in a sub folder in the configs folder

roughlyenoughitems.zip