Getting stuck like a wall of mobs were going to spawn

I realized this bug playing gemmling spec. When I’m zooming I hit an invisible wall if there is a mob that’s supposed to spawn there and I think this is a bug. Corruption mobs, those worm burrow mobs or those big birds that jump out at tower nodes, if they will be there in the next few seconds, it creates an invisible wall where we. Can’t go through

This is clearly a bug right? I hope yall see this.

Bump tested it out with delirium mobs as well.

Confirming if a mob is supposed to spawn in a location in the next few seconds it creates an invisible wall where we can’t walk through.