Value Error Cannot Sign

[andretrevisani]

Hey team, I am trying to create a timelocked TX but while I can load it, I can't sign it. The system tells me Value Error Cannot Sign.
I am using Electrum to create it. I also have tried with Specter but I can't find a way to add a timelock there.

I created a sample on the testnet:

• Mneumonic (no pass): nice ghost era idea clip rival update siren shy acquire arctic reward
• Vpub: vpub5YD3pgwZGvmux1DbPvXxGWenjphaSc5qiTQpyGMQhVhK6W4DsGRLJqHp5dUqmYFLW2GXFm8tQk11fMzyoMKWribumi6CEUEnqgaWTi9yVT6

PSBT

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

Here is a 10-part PSBT
PSBT-parts.zip

System is able to load it

But when trying to sign it errors out

Here is the Electrum UI, note the locktime to 2025/01/01

I can create and sign non-timelocked TXs on Specter. I also imported this TX to Specter, and then exported it from Specter to load and sign, also without success.

[odudex]

Hi André, unfortunately Krux is not compatible with Electrum. On PC you can use Specter and Sparrow. I recommend you to import the Vpub from Krux to one of these two coordinators, then create the transaction from them. Krux exported Vpub contains its fingerprint, that will be later used on PSBT signing for extra verifications.

[tadeubas]

I think the timelock feature on Specter Desktop is visible only on advanced mode, plz see this issue for more info: cryptoadvance/specter-desktop#1101