I tried another wallet......Exodus and had the same issue again.
i am not familiar with Exodus but if it rejects the address then you must be entering it wrong. i can't think of anything else.
Do you have any suggestions for restoring a wallet based on a long string of characters.......numbers letters and / + =
that I am shown when I click the seed icon?
this should not happen! because when you click the seed icon the wallet retrieves your seed (the actual words) and shows it to you. if it is encrypted, then the wallet will ask for your password to decrypt it and show the words again. it should not show you anything else.
if the string contains letters+chars+(/ + =) then it must be base64 which is the common encoding when the data is encrypted. but as i said the GUI (when clicking on seed icon) should NOT show you the encrypted seed.