Same issue here.. Powered down the Server yesterday for a planned power outage. Power back on the Server once power was restored and everything is working fine, though all players ZLevels were wiped :(

never got any help here so i switched plugins, creator and other users insist its due to a corrupt config file but i installed fresh everytime and same results. Shame, but look around friend there are other plugins.

never got any help? I immediately answered you and you did not respond. I later asked a question that you did not answer. I made mention of updating the patch notes and you did not state it happens randomly. if you want help then you must respond.

anyway, BOOBLEJ, I've had multiple people confirm that it works now and have been under that impression until now. contact me on discord with the version you're using. 

this is now locked and future threads regarding this bug will also be locked. it will get patched when I figure out a fix

Still have the same problem. I updated CombatLogger and CustomVendingSetup and rebooted the server. But suddenly the level was reset.

I can confirm that the ZLevels for my server were reset recently when I did the steam update.

It is most likely related to the Steam update. Even though the Steam update I performed did not include a forced reset, only the data of this plugin was initialized. I also updated Other plugins, but started complaining of symptoms right after the Steam update.

Same here, woke up today to player messages that zlevel suddenly reset, we didn't install anything, no updates, no changes. Out of the blue zlevels reset.