NavMainWrapper missing from mobile

[robertluer]

Site: canadaflagshop.com/shop
ZC: 1.5.7d
PHP Version: 8.0.29

Since upgrading PHP version from 7.4 to 8.0.29 I have lost the #navMainWrapper (with the hamburger menu) on my mobile devices but ONLY on my homepage. As soon I navigate into categories or products it comes back. Once it comes back if I select the home icon at the top the #navMainWrapper disappears again.

Can anyone help with this please?

[dbltoe]

Shows up fine for me both in my simulator and an actual iPhone.

[robertluer]

Interesting! First image is a screenshot showing the navMainWrapper missing and second image shows it reappearing once user gets into categories/products. In case it's any help I notice that if I add index.php to the homepage URL on mobile then the navMainwrapper loads properly.