I have done a resycn....but still nothing appears. What is the next step?
I don't know then. Have you checked if you can see the addresses that were generated from your seed on the ledger?
Check if you even have the address listed there where you sent the Stratis to. If you can, then i think that pretty much the only thing you can do is to restore the seed to official Stratis wallet and then spend.
Im not exactly sure how Nano S works, so would be a great if you could take a look around and see if you can find anything that could contain list of the public addresses that are usable in ur wallet and made from your seed.