Most probably it's because you have added a BIP39 passphrase protection but you didn't enabled it throughout the restoration process, so you will have to repeat it.
We have created 2 example wallets to try the restoration process, one has it's recovery phrase protected with a BIP39 passphrase and the other not.
If your restore them and you do it correctly, you will see 2 transactions in each wallet's Bitcoin account.
Ignore that the recovery phrases are short, they are insecure but still valid.
(Press the menu button, then Settings -> Restore wallet -> Restore a wallet)
Recovery phrase: area fog genius
No BIP39 passphrase
Recovery phrase: teach reason poem
Enter the following BIP39 passphrase: [email protected]
Notice, you will get an empty wallet in the following occasions:
- If you select 'Use a BIP39 passphrase' for the Wallet 1 and enter any passphrase.
- If you don't select 'Use a BIP39 passphrase' for the Wallet 2 or if you enter a different passphrase.