You can dodge or jump some shockwaves, others cannot be jumped and must be dodged (you will notice which ones)…. or you can go as far as you can from the boss and receive no damage from it
We noticed that the insta-port happens when the last member of the party tries to go to a waypoint (yes, we were wiped that many times on our first run).
Once we knew that, we took turns to fix up the armor, leaving one brave soul waiting in the arena.
A little patience here. A dev said in another thread that they found the issue, fixed it and are now testing it. Let’s hope it goes live tomorrow.