E.C. Segar (Popeye creator) cause of death shot down twice

IMDb says "leukemia."  I tried to update it to "liver disease" [260415-130423-086000] as his death certificate technically indicates "portal cirrhosis" as cause of death with no mention of leukemia.  That was shot down.  So I attached a copy of the death certificate and resubmitted [260417-210644-762000]--still show down saying "we are unable to verify."  Really?  Are these AI/bots this boneheaded?

Now. . . if it's a matter of my submission not matching the exact lettering of the death certificate, fair enough, but "portal cirrhosis" was not one of the drop-down entries available, and "liver disease" was.