Hello,
I have this error on my BungeeCord server:
https://pastebin.com/YBc8A0fp

I use WaterFall for my proxy, and spigot 1.8.8 for my servers.
I've tried with a normal BungeeCord and it's the same.
(online-mode: false)

Thanks :)

I suspect this is a duplicate of #1462.

Can you set this option to true

https://github.com/lucko/LuckPerms/blob/d1511e43f2e1d4e900e119756cc87ba76ded9a17/bungee/src/main/resources/config.yml#L458-L461

And then try reproducing the issue again.

If you're able to, then please send over the log file from that period.

You want me to send you logs with debug-logins: false?

Hello,
I found the problem. I am currently using the JPremium plugin which allows to authenticate the premium players automatically. This plugin forces the server to set the premium UUID to the player. So I think LuckPerms did not have the same UUID.

Set to true - but yes, sounds like it's an issue with JPremium.

You need to report the issue to the author of that plugin. :)