UPDATE: Found a solution
here, seems to be a asus bug.
During one of the re-boots, I realized that my boot order had changed. I saw "UEFI Sony Optical", so I went into the CD-DVD Drive options and now saw "Sony Optical", listed just under "UEFI Sony Optical". All I did was change the drive in the #1 Boot Order field to "Sony Optical", hit
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