Hello @rene-michaels
I hope you’re well today!
This is happening due to how the popup (in which the form is located) works – it affects popup position calculation.
It can be fixed with a bit of additional CSS. The basic way would be to add CSS like this
#ui-datepicker-div {
top:250px!important;
}
to site’s custom CSS (e.g. via theme’s custom CSS option or via a plugin such as Simple Custom CSS or similar).
Note though:
1. you may need to adjust 250px value to better position calendar
2. since position would be different on desktop and various mobile devices, you may use CSS media queries to address this:
https://www.w3schools.com/css/css3_mediaqueries.asp
3. once CSS is added, you may also need to fully purge all cache on site/server (if there is any) and in browser.
Kind regards,
Adam