Content disappears with Nginx and SSL

I’ve got a website I’ve been working on for months.
Was running it on LAMP, worked great, but used a good deal of resources for good amounts of traffic, so I switched to Nginx, or LEMP, with pagespeed, SSL, and php-fpm.
Everything runs GREAT, very smooth, fast, etc. Only issue is if I go to my woocommerce store, and then go back to a page with content I made in Avia, in Enfold, you can see all the content load in the way it should, and then after it loads in it just vanishes.
I thought it was really weird, I’m not a web pro, but I know a fair amount and I haven’t been able to fix it.
The content is still there, and the background pictures load, everything being loaded in the page is being loaded as “HTTPS” and I believe the HTTPS content is cacheable. This only happens on one page of my website, every other page is fine, so I’m suspecting it’s something that Avia doesn’t like about the server environment, with HTTPS.
I’ve switched back to Apache for the time being, I’d really appreciate any help you guys can give me!
thanks.