MilkBowl/Vault#719

Can you reproduce it without LP installed?

@andrewkm would be best to ask for that.
Sleaker thinks it's related to papermc.

Issue seems to have disappeared. Super confused.

Vault is doing the right thing, the exception was most likely caused by another plugin also modifying permissions at the same time asynchronously.

This wouldn't be LuckPerms - it injects and modifies the direct permissible data synchronously during the PlayerLoginEvent (wouldn't be executing at the same time as a Bukkit task)

exceeepppt... when the server reloads. Is that when it happened?

It was on server start.
We never use reloads.

Yeah, guessing another plugin then, unfortunately the CME only tells you about one of the processes modifying

Not an LP issue though, so gonna close this