Numbers of device do not change anything you still are connected to same IP provided by your ISP and trough the same account so even you try to use 100 devices wouldnt change anything If Netflix/Disney/HBO etc blocked your connection from grabbing their content.
Sometimes even changing the IP do not solve this problem and have to wait 24/48hours to be able to re-download in a row again, like an account temporary ban from *Downloading !
EDiT*: This has Nothing to do with the StreamFab software or crack but its coming from the streaming service provider at this point blocking you.
Thanks for the info, but i am using another app to download Disney+ content, and i haven't got any "temporal ip block". Yesterday i used this app to download 2 seasons of a serie in a row without problems. Could be a problem with the app and the method to integrate Disney+ service into the StreamFab?
Regards.