Vaal Factory - Whole Map Bugged

Hey GGG,

I played a Vaal Factory map last night and wow, it was a horrible experience. First, walls were missing, bridges were missing(walking in mid air), character skipping across the screen(not due to lag, other maps were fine), and then eventually died to something?? everything was laggy so I couldn't tell what killed me. So bricked the map, lost XP, etc etc. The map had a boss, delirium, and irradiated mods. I did the map again and same thing happened, super laggy, sling shotting around the map, managed to kill the last skull and got the F out.