The character's bladder value is always at 100%

Problem:

The character's bladder value is always at 100%, even after he has used the toilet.

Detail: 

The system prompts me that one of the characters needs to go to the toilet.

I observed this character and noticed that after he went to the toilet, he would breathe oxygen at the door of the toilet. After breathing oxygen, he will continue to use the toilet, and the cycle will continue indefinitely.

I found that this character's bladder value was always at 100%, even after he went to the toilet.

When he was breathing oxygen, his first priority was going to the bathroom; when he was going to the bathroom, his first priority was getting back to breathing.
Therefore he will never be able to eat until he starves to death.