Time effect bug

i cant feel any changes on this time effect either its drop or exp boost.. i use drop effect and idk if its working but im pretty sure that exp boost isnt working... if i use exp boost its still same as normal? why? i tried it 2days just to make sure so pls fix it... and the bug map on yangok valley we get the df but cant access the map pls fix the bug

 

i wasn't noticing a problem while using exp boosts or the drop increase

 

i kill delamakin. in normal exp it gives .50exp and when i abled the 20% exp on bank and go back to grind it give still same.50exp so is it bug. or the exp boost on 4hrs ol is just a display?

 

Yeah, I think the game is bugged. Should be looked into to.