Is the summer event part 2 bug?

[Srayer]

My character keeps rolling back after finishing the (Shadow Grotto) dungeon, but consumed energy. Items disappear and achievement resets

[Marimo]

My character keeps rolling back after finishing the (Shadow Grotto) dungeon, but consumed energy. Items disappear and achievement resets

Event, warding, and other outside dungeons will do the same... for lvl 130-131... well rip daily achievement goodies... *full energy restores and ofc genbu normal 50 times...* congratz CS for not allowing a single GM to enter onigiri to check up your sloppy update by adding something that wasn't mentioned in your patch update... -_-

[Wibberish]

Uh, has anyone actually sent a proper bug report about this via their website? I don't even play right now, do I still need to be that guy...?

[Srayer]

WELP
I though my character was bug, since I haven't playing for a quite a while, I guess I won't be back soon