Failed to load utxos, IndexError: list index out of range

[mmikeww]

Describe the bug
When I try to open up my multisig wallet, I get this red popup error: "Failed to load utxos, IndexError: list index out of range"

I have two different multisigs, and the 2nd one works fine and normal.

This seems to have happened after I initiated a send. I hadn't yet gotten any signatures, and now this error is popping up every time i try to access the wallet and so I can't even get to the transaction list.

I was on Specter 2.0.2 and Core 24.0, but I just updated to Specter 2.0.5 and Core 27.1 and the problem persists. Both Specter and Core are running locally on my laptop. Chain is stored on a local NAS. This setup has worked for years in the past.

Expected behavior
Expect to be able to open wallet and see txn list and send/receive addrs, etc

Screenshots

[mmikeww]

Created a new multisig wallet in Specter using the same devices and keys, and during setup in order to get faster speed, i chose to only scan the UTXO set instead of the full txn list. This worked, and allowed to send an outgoing txn after collecting the 2of3 sigs

[leon-costa]

It seems to be caused by a bug in Core on locked UTXOs. I suggested a workaround in pull request #2467.