Mobile Homepage loads without formatting first time, refresh fixes

Hello!

I’m having issues with my subfolder site loading incorrectly on a mobile browser.
My main site is: dakotamidnyght.com
My subfolder site is: dakotamidnyght.com/shop

I’m using a WooCommerce install on a subfolder of my main site, with WooCommerces’s Mystile as the theme. Both sites load fine on desktop – no issues switching from the main site to the subfolder (shop) site.

I’m using a subfolder install because my primary site’s theme (Prophoto5) doesn’t allow WooCommerce to work on mobile. 😛

However – if I click through either of the menu links from my home site to the “Shop,” the “Shop” home page loads without formatting (it’s just loading basic html?) and the no-formatting problem persists through the entire site.

(Screenshot of no-formatting load: https://drive.google.com/file/d/0Bzu_0lGG6XXMTUQ2RjdnNGMzUkk/view?usp=sharing )

If I reload the Shop page, the formatting comes through the second time & everything works fine.

But this problem ONLY happens if I go through the links from my main site. If I enter dakotamidnyght.com/shop in the mobile browser, the site loads just fine. Other than the loading issue – everything else works just fine on both mobile & desktop.

I’m looking at it on Chrome from a Samsung Galaxy S5, but a friend tried pulling it up in Dolphin on a Galaxy 6, and we tried my husband’s Galaxy 4 – they all have the same issue. (So not a browser caching issue?)

I’ve tried changing over to the TwentyFifteen theme and deactivating/reactivating all my plugins – and different theme/no plugins results same non-formatted issues as well, so it’s not theme/plugin related.

I also un- & reinstalled Mystile. No difference. The only piece of custom code is a css change:

h1.page-title{
	display: none;
}

That code is hanging out in Mystile’s custom css page (they have a specific one for them), but removing the custom code made no difference.

I am wondering if this is traceable to my subfolder usage. Perhaps because I’m coming over from the main folder with one theme, to the subfolder with another theme – but they both have the same url – the browser doesn’t realize it has to load a new theme? Is there a way to get around that with coding?

I’m hosted on WebHostingHub, and I used their Softaculous installer to create the subfolder. It should be an entirely separate WP install – all the files are there – but I don’t have multisite installed. (Prophoto doesn’t play nicely with multisite either. *Sigh*)

I am decently familiar with WordPress dashboard but don’t code except a bit of html & css here and there, and server-side work is very much a “find the tutorial, follow the bouncing ball” for me – so I’d really appreciate any help or thoughts.

Thank you SO much for your assistance!