After several hours of fruitless attempts to reconnect my nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm Wallet to Alby hub, I finally managed it by deleting everything and starting again.

Despite it not being connected, the Alby browser extension saw the entire transaction history, but not the balance.

I eventually had to choose a different budget to stop it using the same non existent connection.

I finally got it working, but you have to fool it that it isn't already connected.

I think a more robust disconnect and reconnect scripts are needed for corrupted connections.