Expected Behavior

Placing a jar when right-clicking while carrying jar.

Actual Behavior

Jar is placed but also remains in your hands and throws an NPE.

Steps to Reproduce

1. Place a Pixie jar (any color)
2. Crouch and pick it up
3. Attempt to place the jar

Version of Minecraft, Carry On, Forge

Minecraft: 1.16.3
Carry On: 1.15.1.7
Ice and Fire: 2.1.2
Forge: 34.1.42

Screenshots encouraged

Error log:

https://gist.github.com/GSValore/84ad8eb904aff557edd6a9edb5e84e17

We had similar problem on 1.16.4.
Friend of mine decidet to /kill to get rid of jar from hands. (keep inventory was on)
In fact he remain dead and server stopped noticing him at all even if he was online. That was wierd. I had to delete his champion log from server to clear it up. That helped for perma-death.

/carryon clear should work in those cases

Thank you!