[MC_GUNNER]

No it doesn't happen all the time like prevent me from playing Graal on V4, Although on Delteria that message seems to come up and stop me from playing it so now i've quit Detleria (server) because a firmilliar message comes up but with more numbers and something about the IP but i keep pressing Enter and then it finally goes away.
Although when i do reconnect that message still comes up i'm not sure what causes it because i re-download / update my Graal V4 and main Graal levels and other packs and such in the download area so i don't know what it is but it looks like a bug of some sort.