i have started my wallet with the 3.0 version and i see in the logs i see a bunch of lines " ..this spent, it was marked as unspent" that correspond to the amounts i have tried to transfer,but the amount is not presented in the balance and when i check the history, now i cannot see the transfer.
any idea how to recover the founds?
You can sync wallet with 3.0 and open wallet 2.1 sync. When the wallet 2.1 synchronized to block that wallet 2.1 has stopped, you open wallet 3.0 to see. If you have not done it again. I was successful