copper citadel - minions doesnt revive in phase 2

I just attempted a copper citadel and in phase my skeletton minions just stayed dead. The timer for reveive went down and out of 4-6 times it did, my 1 cleric was revived 2 times.
After the reivive timer went down it took about 10 sec for it to start again, only to have another disappointing result.

i dont know if it was because i was mostly close to the edge of the arena and the minons didnt have space? Or maybe the high "less cooldown recovery" modifier was making it so, that they didnt spawn at all? I also did a weapon swap to kill some of my minions for a corpse explosion.

i ran away alot so the bossfight lasted about 2min in phase 2 but in the end i failed the bossfight.

I post the map mods though, if that helps.