EXP Buff dissapeared after Ressurection

Ive encounrtered this bug a few times, however i wasnt exactly sure if had just not paid enough attention or if it really was a bug.
Today i finally encountered it again.
Following happened:
In Expert 3-10 i hopped on tile 3 to get the EXP buff. I had Boarbarian and 3 monsters below level 40 with me, to level them up, however my Boarbarian died and with him my other smaller monsters. I decided to go for a Res because i still had 2 more jumps with the buff and was close to the Levelboss, and after a res the buff symbol was still there showing me i still had 2 steps remaining. I landed on the miniboss, which should've left me with 1 more step for Buff. But as soon as the battle was over, the Buff vanished.
Now, i must admit i didnt pay enough attention wether or not my monsters got the doubled EXP or not.

I would just like to know, is the Buff supposed to REMAIN after a res, or is it SUPPOSED to go away after death?

Would be really nice if some Support member could fix this and tell me what its supposed to do so i wont waste my reses again to keep up a buff that vanishes after one jump

[support9]

Hi kessir,

I'm sorry to inform you that once you resurrect your dead monster during the level challenge either with resurrection card or coin, all existing buffs/debuffs will be cleared. The buff icon should have disappeared right after the resurrection operation took place, however it generally takes a little while for the game client to synchronise with the server (the exact lag time depends on the stability, speed and quality...etc. of your local network connection), therefore due to lag, you saw the buff, but it wasn't in effect.

Alright, thanks for the clarification At least now i know i dont need to waste cards nor coins to save my buff.