Header picture disappear on mobile

Hi, my picture header disappear in mobile view. Is there any max height? Mine is set on 1100px.
Thanks for any help1
Hervé

Hello,

First thanks for using our theme Sydney!

Could you please share the website link with us, so we can do a inspection, discover where’s the issue and send the best solution for you.

Kind Regards,

Rodrigo.

aThemes Support