[BUG] Special Map - Silent Cave - Boss stuck in Essences

Hello,

As the title says, I've encountered a bug in the Special Map called Silent Cave
I activated the map, cleared the map by freeing the Mobs stuck in the crystals and I killed them, after I killed all the mobs , I coudl activated the big/main crystal where the boss of the area was stuck.

I did that and I fought the mapp boss, but I died and respawn at the checkpoint.
After I respawned at the checkpoint, the entire map also respawned, and I killed again all of the mobs, but this time, the main Crystal where the boss is stuck does not have any way to click it to activate it for a 2nd time.

I checked 4 times to make sure there was to mini crystal with other mobs somewhere, and there aren't any crystals left, other than the Boss crystal.

There is no way I can activate it...
After multiple tries, I gave up and moved on to a new map
I lost the waystoene but it is what it is...

I'm just annoyed that I did not get any essences since I could not fight the boss a second time...