Process to use a subdomain

I’m stuck.
I use subdomains to separate a client’s wedding site from my main site. I’ve been doing it for years with a bit of a gap due to the 2020 “situation”. My process is usually to create a new folder a few levels down in my website for a client and install Backlight there. Once the install is done and I’ve gotten the site up and running to my liking, I use the BlueHost control panel to create a subdomain for the site. I then go into the Backlight admin panel and change the Site URL to the subdomain address so that the pages are all properly referenced. The page loads, but without any of the customization (color, images, typography, etc).
What am I missing?

The setup URL is, for example, https://www.divinemayhem.com/Weddings/zach_and_kristen/
The subdomain is zachandkristen.divinemayhem.com/

I’ve included images of what is happening below:
The regular URL:


The subdomain URL

BlueHost subdomain setting:

The Backlight settings:

maybe try clearing template cache?

Your site at http://zachandkristen.divinemayhem.com is trying to load resources from https://zachandkristen.divinemayhem.com (note the https, not http). The latter is insecure, presumably because it doesn’t have a valid SSL certificate installed.

To fix this, either make sure your certificate is correctly installed for https://zachandkristen.divinemayhem.com, or change your Site URL in Backlight’s settings to start with http:// and not https://

The Backlight settings shows the site URL is http:// and not https://. Is the issue that the subdomain is being forced to https://?

I have SSL for the domain and subdomains, but when I check SSL/TLS status for the subdomain, I see “No certificate available”. I tried reinstalling the certificate without luck. Should I chat with BlueHost about getting the subdomain added to the certificate?

I think that I’m just going to make life a little easier and do a redirect of zachandkristen.divinemayhem.com to https://www.divinemayhem.com/Weddings/zach_and_kristen/

I appreciate both of you giving it a look!

I’m not sure what’s going on with the resources. If the page is loaded from http://zachandkristen.divinemayhem.com then the link to the stylesheet is written as /backlight/publisher/gallery/stylesheet/style/6 which should load correctly over http. For some reason the browser is trying to load it over https.
Browsing directly to the stylesheet at http://zachandkristen.divinemayhem.com/backlight/publisher/gallery/stylesheet/style/6 works.

Yeah, it has been that kind of day. The redirect will suffice. It will just be less elegant for the visitor. Thanks!