Form invisible on Apple mobile devices (iPhone, iPad)

Just discovered clients can’t see the form on an iPhone or iPad – it’s not showing at all. This may be similar to a problem in the past it not working when the form using conditional logic and it’s a theme conflict (I use Divi).

Anyone else having this issue? It seems to have only occurred in the last week. I believe there was an update?

It’s the last section before the footer content on: