I think you need to convert your FTM to S first and then you can easily interact with FTM new network which is SONIC, now that exchange also delisting FTM and listing S after the migration, it will be beneficial for you as well.
I was aware that FTM is now Sonic, but as the ticker is still showing FTM, I assumed I could still transfer them in the original name.
different token, so it can't be transferred as if it's S, need to migrate first since they are going major rebrand. but nothing to worry since it can be converted 1:1.