Weeeelll, my story includes a whole day of attempting to do these, only to get roughly 10 minutes in each time before the entire team got booted out (disconnected).
I know it wasn’t just me, as the chat servers were still functioning after the game froze and we could continue to talk to each other till we all got kicked. Some little flashing and beeping “disconnect” icon kept displaying (never seen that before either).
Was not fun. Managed to successfully do one yesterday, though, although we died at the end of the Heliophage due to getting a really unfair and unlucky boss combination - Warlord Nix and The Conservator from Void’s Edge.
EDIT: It’s been a long time since I’ve done Advanced Heliophage - was unaware that the boss combination choices are static now, disregard my above comment (I still think that combo is a bit too OP though).
Sucks too cuz that was the last phase before Rendain (third boss duo), but it was two heavy hitters that also spawn LARGE groups of minions each, and those Thrall Brutes SHREDDED us immediately with their bullsh*t grenade attacks.
*They really need to rebalance those grenade’s damage, as they will ALWAYS two shot ANY character ffs and you have NO reaction time to get out of the blast radius, nor does the damage diminish at ALL for being on the outskirts of the blast zone (and it also doesn’t matter if you are in the air when it hits the ground below you, either…).