Why map loading time is different from browser to browser?

Hello,

The issue has already fixed by one of our customer. You can follow below instruction. I am providing his exact replies. 

I only force reactive to use a normal marker instead. By changing the property name that is used on conditional logic to something else ( so that it is intentionally treated as false ). I re-named the window.RichMarker to the window.RichMarkerNotFound on :

/reactivepro/assets/dist/js/re_preview_d033df.js?ver=5.7.3

If you check the above file, there would be the string 'RichMarkerNotFound'. it's originally named just RichMarker.