Fresh install of WP and latest beta (RC1)
Create page
Edit with Pro
Endless spinning circle (never loads builder)
Also will not edit Sample page (with Pro)
Can edit within Wordpress
No other plugins activated
Any ideas … ?
Login credentials to follow in secure note
Edit — Cannot access Theme Options either 
Unable to load RC1Pro also.
I purged all cache and just get the spinning loader screen.
Well, yes and no. I was trying out the RC1 on my Mac at home which was the first time ever working on the website with my Mac and it gave me the spinning load screen. I came into work today and everything is working correctly with RC1 on my work computer. I didn’t try clearing the browser cache at home but that may be the issue.
Hi there,
I’ve logged in and it’s working ok here. I think this might be a case of the previous versions javascript trying to run with the latest PHP backend. This would cause an issue with booting the app but is corrected by clearing the cache.
@alexander
As I said in my OP, this was a fresh install so there is no “previous versions javascript trying to run”
I did install “WP Fastest Cache” and cleared all cache
No success
I tried it again tonight and it works fine on Firefox but does not work with Safari. I have purged and deleted all browser caches many times and no luck with Safari for some reason.
@staceymarler
Confirmed
I have been successful with other browsers
Seems like the issue is Safari
Confirming this issue with spinning icon on PRO. Just installed fresh WP, latest Beta version. Running on Mac, Safari.
Tested with Safari in Private mode - Same issue.
Works on Google Chrome.
Thanks! Fixed the Safari loading issue.
I thought I was crazy for a minute (until I saw others with the same issue).
Thx for the quick fix.
Looking forward to the next RC / release 
Thanks for reaching out to let us know! Looking forward to the release as well.
Fixed in RC 3
Thanks!!!
great!