When the pop-up window in the layout changes, js reports an error.

I am not a professional front-end, did not find the root cause, this is just a temporary solution.
Or is there a more professional front-end developer willing to follow up?

First this bug must be documented by you, @leo liao.

Tagging for issue summary update as there is no proposed solution.

May need to debug why that data is empty in the first place. May be masking a larger issue.