Limit on number of App Preview upload attempts in App Store Connect?

Is there a limit on the number of attempts to upload an App Preview in App Store Connect?

I have been trying to upload an app preview for my new macOS app, each time I received an error (wrong audio format and the like).

Now, the web front end in Safari doesn't even begin to upload the movie! When I click on "Choose File" under "App Preview and Screenshots", I can select the file on my disk, then click "Choose", and then nothing happens at all.

I have already tried logging out and in, of course.

Any ideas would be much appreciated.
I am beginning to pull my hair out.

Best regards, Gabriel

Accepted Reply

I have now used Google Chrome, that seems to work.

Replies

I have now used Google Chrome, that seems to work.