I found it!!! It was in a hidden wallet that was passphrase protected. I did not see that before. Thank You both so much!
This is certainly good news and perhaps another opportunity to warn all those who will someday find this topic to understand how important it is to keep such sensitive data safe. Over the years, here on the forum, there have certainly been dozens of cases where people claimed that they had the correct seed, but that their balance was still 0 when they did a wallet recovery - and in a good part of the cases it was precisely the fact that they had forgotten that they had an account that was protected by passphrase.