I have a 2020 iMac running 15.7.4 and i want to upgrade to a ssd so i thought i would have a practice cloning with a external HDD but i need getting this error message telling me it cannot perform the restore process, is it because the Mac HD is APFS (Encrypted) and the only option when formatting is Mac OS Extended (Journaled) or because i have it plugged into a usb hub