How To Stop Bosses From Going Into Wall?

From what i remember, every time there is a quest that ends with a boss fight, the boss always ends up in a wall and then in a ceiling to where i cant kill it and complete the quest. Is there any good way to prevent this or what?

 

If you ever find out, the thread you make will get more likes than a Salted post. This has been an issue for pretty much as long as bosses have been a thing (actually, it might just be since Gavel, as I don't remember that particular glitch happening before, but it's been a little while). The best solutions are to avoid using spells with knockback (especially warscream), particularly near walls, if the boss has a movement spell, try to bait it into only using it toward the center of the room and pray to Salted for luck.

 

Yeah, as said above, don't use spells with knockback. If the boss gets stuck, just /class for 20 ish seconds to despawn it and try again.