Ritual altars spawns monsters that can't be killed (no life bar) and do not deal dmg

So I have run into an issue where, during ritual altars, it starts spawning monsters that do not have health, can't be targeted (I'm playing an EA ballista build and the ballistas do not seem to register the monsters) and they deal no damage.

However they seem to make it impossible to end the individual altars. The only solution I came up with, was to TP and use 1 portal for each altar. Since there are 4 altars, this solution takes up almost all the portals.

The ritual altar type is the one that spawns totem to make monsters take reduced damage if that helps.

I have taken a screenshot with the bug report number (linked below)