Copy App stuck at 'We're setting up your new app'

Hi, I’m trying to make a copy of my app in another google account.
I followed the instructions to first share the copy of the app from user1 to user2. then from user2 account, i clicked copy app.
however, it gets stuck at We’re setting up your new app for the last 25 mins.
how long does this take?

thanks!

it finally replied with an error! what does this mean?

Error cloning app on the server: | 520: Web server is returning an unknown error <
Web server is returning an unknown error
Cloudflare

What happened?

There is an unknown connection issue between Cloudflare and the origin web server. As a result, the web page can not be displayed. If you are a visitor of this website:

Please try again in a few minutes.

If you are the owner of this website:

There is an issue between Cloudflare's cache and your origin web server. Cloudflare monitors for these errors and automatically investigates the cause. To help support the investigation, you can pull the corresponding error log from your web server and submit it our support team. Please include the Ray ID (which is at the bottom of this error page). Additional troubleshooting resources

Had this a few times, especially with big Apps. Sometimes it works on the 3rd or 4th try…