Staked Solana disappeared out of my Tangem wallet today

Title sums it up. I had a fair amount of Solana staked in my Tangem wallet. I refreshed my wallet today to look at any interest that may have accrued and all of my staked Sol disappeared. My Tangem wallet shows zero staked Sol. I have done the usual suggestions, phone on off, WiFi on off, network on off, different network, different wifi, update the app, etc etc…I think the lesson here is use Tangem as a cold wallet and nothing more. Any suggestions would be greatly appreciated.