Feedback: Ultimatum should not spawn enemy types that can FLEE from you / beyond the arena

So I was doing ultimatum. Made it to wave 10. 80% bar full.

All the enemies that spawned were little robots that run away from you.

I LITERALLY could not win before the ruin stacks filled because they kept fleeing OUTSIDE of the arena, then getting TELEPORTED back inside. All the while giving them multiple phases of invulnerability and escaping my attacks.

It's bad enough how awful this mechanic is in general, but for it to be capable of spawning next to zero mobs on a KILL MOBS mechanic, and the only 5 enemies that spawn flee beyond your reach repeatedly is garbage.

Please, fix this terrible mish mash of mechanics. You should not lose an encounter because ENEMIES AREN'T SPAWNING because too many are alive, and the only ones alive FLEE BEYOND THE FREAKING RING then get INVULNERABLE TELEPORTED BACK when you need to KILL them.

There was a grand total of maybe 5 enemies as well when this was happening, in a mechanic thats SUPPOSED to spawn ENDLESS WAVES.