If your site is still stuck, no one here can do anything about it. 😞 We are just community members like you and don't have access to fix anything for you.
I have this problem every single time I try to use the staging, the main reason I suggested to my clients to pay for managed. Everytime an hour or more on the phone with support like they have never had this issue before. My latest site is now currently stuck on 60% again for hours and all support did before I got cut off from them was somehow manage to break everything even worse and blame it on a theme which is running on the same account on multiple sites perfectly, including the stagin site and the live site I was working on before using their broken Staging site functionality.
