BS4 Modal and date picker broken from third party code

Hello,

I’ve inherited a BS4 project from a person gone from my team, where she was using a third-party template - the whole thing is a little messy and with unexpected behaviors that I cannot reproduce from a clean wappler page, so I know for sure some css/scripts are interfering somewhere.

Once of the concerns is a date picker that works fine on the page, but not on a modal, displaying two calendar tables and not picking up any data:

image432×833 38.1 KB

Is there an easy way to see where this behavior comes from? I tried using the inspector but I don’t see anything obvious.

Thanks!