I’ve managed to pin point the problem (I think). For some reason, my WordPress and Site URL MUST be the same for the preview function to work. I don’t know why, since aside from making sure the format of both are similar it shouldn’t cause any problems. This was what I was doing previously (without the quotes of course):
WordPress URL: “https://www.primarydomain.com/blogurl”
Site URL: “https://www.blogurl.com”
This is the url generated by the preview link:
“https://www.blogurl.com/?p=7&preview=true”
Anybody have any ideas what could be the problem? Couldn’t be something on the hosting side could it?