Jordas Golem Quest Boss not Properly Spawning While the Squad is led by a Cross-Saved Player

[(PSN)DragonrendUmbra]

I was invited to the Quest version of the Jordas Golem fight by a player who recently cross-saved their PS4 and PC (primary) accounts, but the boss was completely invisible to me, a PS5 player, while the PC player was completely unaffected by this issue. I could not see Jordas's health bar either, but I still took occasional damage from the boss, somehow. We aborted and then reloaded the mission, but this did not solve the issue whatsoever. When I was squad leader during a later attempt with this same player, the boss fight behaved as normal.

I took several videos of this bug over the time it took for the PC player to solo the boss, but I am not sure how to submit these onto this post.