Page refresh on Iphone

Hello,

I use the pro version of the plugin and I have some problems on Iphone mobiles.
When I click on a marker to go to another scene, sometimes it refresh the page.

It happen very often with older version of iphone (iphone 7) and sometimes with the new one (iphone 11). I have this problem on safari and google chrome.
On android, it works fine.

I have a second problem: sometimes I just got a black background on the back. The background image doesn’t show.

Thank you for your help