Solved display malfunction on Safari

Hi community

This is my vey first post. I hope someone can help me.

I do delevop for a client a new website. First we try to transform her current standard theme in a divi theme. But we run in too many malfunctions and errors, so I decided to start from scratch with an aditional subdomain.

Now I have the domain www.staub.start-hilfe.ch where also in Safari (Desktop as well iOS) all looks fine.
With the new subdomain www.staub-neu.start-hilfe.ch I suddently have the Mobile Menu cut off and the divider is half as well. But only in Safari. In Chrome, Firefox, in Adroid it works fine...

Where is the problem?

Thanks in adavance! Let me know if I should add any useful information. Im still a newbie.

 

Thanks for your fast reply!

- Update Divi & Wordpress to the latest version & clear your cache.
--> There was actually one update for Divi. Even the other side have the same version. But anayway I update! Didn't help..
- If still not working, try to disable Autoptimize plugin & see if it works.
- If still not working, try to disable all plugins & see if it works.
--> disable all plugins. No success
- If still the same, it's best for you to refer official Divi support about this & see what they say: https://elegantthemes.com/members-area/help/
--> I guess thats what I need to do. I can't tell my client she have to start for a 3rd time the website.

 

It's wired but I found a way to solve it....

The fullwidth-slider somehow cause the problem. Copy the modul in a new section doesn't work. But create a new one and delete the old did actually work. Is a bit work but at least it solfe the problem...