Bug: Temple of Kopec Rising platform

There is a bug where a friend and I had just beaten the high priest of kopec and I had talked to Alva while my friend wasn't in the center of the map.

It locked him out and we had to wait for the map to reset after disbanding our party and re-inviting to fix the issue.

It created a quest state where he couldn't go to Utzaal even though he witnessed the animation, but the gateway never activated for him though it did for me.

It was in Cruel difficulty if that matters.