Maven arena, Invisible wall. (I think know why)

So for the second time this league, there was an invisible wall in my maven boss fight (first time was normal maven and 2nd time was uber maven)

I'm pretty sure I figured out what happened. During the "brain" phase, Ersi, Mother of Thorns spawned. Then Ersi did the charge attack where it spawns wall on either side but when the attack finished, even though the wall disapeard, they stuck around for the rest of the fight, but were invisible.

So in other words, the wall didnt properly dispawned after the boss's attack. It happened to me twice so I wouldnt be suprised if it can also happen with other type of wall spell cast from different map bosses.

Hopefully this can be resolved soon cause it totally bricks your maven fight :(

this bug was reported over 1 month ago, GGG told us they will check
40 days later signature boss of game is still bugged, spawning invisible walls bricking the run for sc players, killing hc players.