On Arena Mode, I was playing in the noxious sewers when I accidentally stood on one of the 4-way arrow shooters as the round changed. This clipped me through the ceiling into an invisible ceiling. I was able to get out after a lot of finicking with teleport movement, but this is still a pretty bad softlock.
#Stuck on invisible ceiling in Arena Mode
deft gate
next valley
I also experienced getting launched into the ceiling, but my circumstances were different. I was the host of a2 player game. And when I got hurt by monsters, I would get put on a sickening "vertical shaking ride" glitching 2ft in height in and out of the floor like I was falling through the would, taking more damage every 2-3 second until I died.
Then I got sent into the floor or the ceiling afterwards. I tried to teleport to my co-op partner, but that glitched it even harder. That broke my vision and ability to see altogether.
At some point my body(also observed by my partner as 'in the ceiling') was no longer in the ceiling and I was able to be revived.
But I continued to suffer at least 2 more incidents of this volatile "touch, shake, death" roller coaster
I would note that it was after getting one bloodshot eye bringing me to '2 HP' and a second bloodshot eye bringing me to "1 HP' when I experienced this glitch. I don't think it happened when I had regular full hp