Fabrizio,
struggled with the same problem, I found a solution that maybe it is only relevant for my motherboard, but that's what I did
Mounted EFI
Replaced apfs.efi with the updated one (see first post in thread)
Moved /EFI/CLOVER/Drivers64.UEFI/EmuVariableUefi-64.efi to Desktop (I need it for...