Warden Exists Forever

At the junction of a huge normal cave and DeepDark in one of my world,  there are always bats and monsters generating. As the result , Warden continues to get irritated by mobs (most are bats) after be summoned by Sculk Shrieker. It seems that the warden will exist there forever (i tested for an hour).

I hope this issue can be solved since it's very annoying when deepdark biome is in spawn chunk.

I can hear its hitting noise after i go back to the ground and it won't disappear after i left.

Also, I can't mine in the area because of it, that makes gamming exprience terrible.