I was flying my airship when the server I was on crashed. I joined later and the server was lagging severely and xp was flying out of where the ship would've been. The server owner restarted, and my airship reappeared in a chunk a few chunks back which I had been flying through. The xp was now obtainable. I have no idea what happened, the issue happened multiple times. The server seems to think you're where the xp is and will place you back every time you relog.

It wasn’t a crash that caused the issue but a forced server restart

Please make a new issue and follow the issue template, providing all the required information. Make sure that you test with at most one other mod besides Valkyrien Skies and addons.