30 seconds in to the video.
My GR didn't let me zone to the next level. Just trapped me on level 1. Didn't have enough mobs to spawn the RG so I had to close it out. GG Blizz.
I had the exact same thing happen to me on a T6 rift about a week ago on a different Act 5 map. Had to just leave as well.
Happaned as well. Its just severs going haywire for some reason
I as well had it happen last week on a t6 rift, had to end game and restart new one.