Circle or Label do not stay open on mobile

Hi, i have a problem with circles and labels as markers on mobile:
The popup works fine on desktop, on mobile the popup won’t open or is closing unexcpectedly when i click somewhere else.

I have tried different sizes of circle and border, nothing seems to solve it.

The only way to reliably open popups on mobile seem to be using “classic markers”.

Any idea why this could be happening?

Thanks!
Flo