Backpacked client crashes on right click.

[kevinf100]

Using CrossStitch, Velocity, and FabricProxy-Lite the client crashes on a right click. Without CrossStitch no one can connect. Not 100% sure if this is a Velocity, FabricProxy-Lite, or CrossStitch.
crash-2024-07-09_22.51.03-client.txt

Edit - Looks like this a problem with Backpacked.
MrCrayfish/Backpacked#179
Removing it from the server isn't enough either. Needs to be killed from the client. Not sure if CrossStitch can fix this.