Here are responses by different users about the Waller Affix being bugged
"Wallers were NOT fixed like...1.0.5 patch said they would? I think it was that patch.
You can EASILY have a wall planted RIGHT on top of you preventing you from ANY movement. "
"Some birds plopped down that were waller/arcane :( got stuck in 4 walls, couldn't move... did Lingering fog 3x and walls still weren't down, got sliced :( Was tragic.."
" have also been killed MANY times by walls that you can not get around
and/or once dropped i am unable to move at all, in any direction."
"I've had a lone wall spawn right ontop of me, with me being in the middle of it, unable to move... It's like i was apart of the wall."
" the affix is not working as intended it's not supposed to spawn walls on top of you, but it clearly does. "
"I'm fine with walls blocking my path, I'm not fine with walls acting like an overpowered version of Jailer. "
"I've read many posts about this and have come to the conclusion that blizzard will never admit to this being a bug. Though, i've never seen a blue respond to a post about walls."