I've got the following situation:

I worked with BTC transaction in OWNR wallet for 4 last years - last successful one was made on July 14
Next day OWNR has stopped broadcast BTC transactions and the problem is still active (no adequate response from wallet support)
It correctly shows transaction history with all required details according with any blockchain explorer

Surely I've tried to open my wallet in Sparrow by seed phrase with BIP39 passphrase
Sparrow correctly restore all Legacy transactions and addresses so I've transferred the balances to the new wallet

but when I've tried to do the same procedure in Sparrow with SegWit addresses it shows no addresses at all - even for fresh transaction from July 14
Of course I've checked every word in seed and made import procedure several times, tried all SegWit protocols in Sparrow - results are the same

could you provide helpful comments for the situation ?