Please help me

Hello please help me, if a character in a hidden dungeon leave after rejoining it appears ibid how to fix it?
Sorry for my language ((

im sorry for your language too, didnt understand most what the **** ibid is?

I have a problem with the hidden dungeons and the instance when i enter the hidden dungeon everything is fine all the mobs are good
the boss are there , but i can use all the feathers + when i dc i stay there! and the instance i cant use fethears but when i dc i stay ther