boot.efi error on reboot after successful upgrade Mojave to Catalina, Aorus Pro Wifi, Samsung 970 Nvme

Hi, any help would be appreciated. Upgrade went well, problem though arises after rebooting. I get a "Error: Aborted returned from boot.efi" in verbose. Ended up being able to clone back from an external SSD running 10.15.4. After cloning from the External SSD (10.15.4) to the internal Nvme, I can boot the first time from the Nvme, but after shutdown and/or rebooting, I get that "Error: Aborted returned from boot.efi"

Been trying all kinds of solutions with respects to different versions of...

Read more