If you make a pattern in the knowledge inscriber, and try to click the "save" button while still holding an item (in your mouse cursor), the client gets disconnected with an error, and thrown back to the game main menu.

I have not been able to duplicate this issue. Can you send me a crash report?

Closing due to no response.

Sorry, must have missed the GitHub notification.

I can't reproduce it either, which is weird. It was happenning every time, when I opened this issue.
I'll make sure to get a crash log if it ever happens again.