EB Search Module - Select Dates To & From - Calendar not working

If you switch to use protostar, I believe it will work. Quick check, I don't see what's the error yet (no javascript conflict), so maybe there is css code somewhere makes the the popup date picker hidden (I can only guess)

Please try to figure it yourself. If you cannot figure out, submit a support ticket sending us super admin account and link to the page. We will try to check it further and hopefully get it sorted

Tuan

Hi Tuan,
I think you are right it must be something on our site as other EB Users must use this module without problems. I have looked at our CSS overrides in both EB and our Template and I can't see anything obvious. We don't have the standard Joomla Templates (ie Prostar) on our site. I will investigate further and open a support ticket if I can't find anything. Kind regards David

Ok, I have found a problem on our site. 
I tried the Module on our test site which uses the same template and version of EB Booking. The module there works fine
I then went back to production site where we have the problem and removed any CSS overrides related to EB Booking.
Still, I have the same problem.
The only difference between our test site and production site is that we use JCH Optimize on our production site ( www.jch-optimize.net/ )
I turned off all the CSS optimise options in JCH Optimize and tested again.
This time the Calendar pop-up now works!!!
However, I still have a problem.  When I display the calendar pop up is sets the default to Today (As I would expect)
If I want to move the Day or Year I can do, but it does not allow me to move the Month, so I can go from Today (3rd December) to 3rd December 2022, but there is no way to move forward by one month, ie 3rd January. This happens on both our test site and production site, I I don't think this problem is related to JCH Optimize.
See screen shot