Observed behaviour

When you shift-right click on a block entity with the Carry On mod installed, you pick it up and place it with a right-click.
When you shift-right click on an Alchemist Cauldron, you pick it up and can place it down again, but the cauldron doesn't actually leave your hands. So you can place it down again, and again, forever.
This also disables your inventory and any way to interact with the environment so it essentially locks the player until they clear the item they're holding with commands.

Expected behaviour

Right-clicking after picking up the cauldron should just place it down once.

Steps to reproduce

1. Install Carry On
2. Install Iron's Spellbooks
3. Shift-right-click on an Alchemist Cauldron to pick it up
4. Right click to place down Cauldron and duplicate it.

Server Type

Single Player

Crashlog

No response

Iron's Spells N Spellbooks version

1.20.1-3.1.3

Forge version

1.20.1 - 47.2.23

Other mods

Carry On, 1.20.1 v2.1.2.7

This is a known carry on issue and should be reported to them

I think i had the same issue. It took a while to figure out what to do. Dying was the "easiest" solution but with the keepInventory feature set on TRUE i couldn't do it. So i turned the feature on FALSE by typing /gamerule keepInventory false and it worked.
Hope this helps!!