Thank you both for your help. BD I am attaching a screen shot of the missing URL but I have no idea whether it was there previously.
I am also attaching the profile that clearly shows that the little down arrow is missing from the 2 Source Citations for the marriage. If I click on the 2 Source Citations link nothing happens. If I open these records from the Facts and Sources tab all works as it should.
This is a mystery and I haven't been able to find the problem anywhere else except the problem is repeated with the same 2 Source Citations on Ann Voco's page.