WHMCS install to a subdomain giving 404s

I know this isnt WHMCS support, but I am trying every angle until I get some help because my system is screwed right now.
I recently moved my WHMCS install to a subdomain on my primary account. I followed all the directions, verfified correct urls in phpmyadmin, now The homepage and a few others load but the rest gives a 404. Anyone have experience with this?

Can you provide a link to the directions you followed? Is there an .htaccess file that is still redirecting requests to the old location?

I actually was able to fix it by getting rid of the https url because for some reason it was trying to pull from old directory even though the actual url didnt point there. But I could see it in the old cert info. Weird