PenciDesign replied
Hi,
We've said about this issue in the documentation for Soledad theme here
Note that: AMP pages doesn't supports display category mega menu, so, please go to Appearance > Menus > create a new menu for your AMP ( which don't use category mega menu ) > scroll down and check to "AMP Menu".
After that, you can try validate again URLs has issues on https://search.google.com/test/amp to see your AMP is fine or not![]()
Best Regards,
PenciDesign