When I try to sign a transaction that was generated with Gaia v25 (Cosmos SDK v0.53), the app responds with this message:

Signature error

Request failed with status code 400

When I open a console in the browser, I see this error:

error: 'unknown field "unordered" in tx.TxBody: tx parse error'

If I remove the unordered field from the JSON, I get the following:

error: 'unknown field "timeout_timestamp" in tx.TxBody: tx parse error'

If i remove the timeout_timestamp from the JSON, I can sign the transaction successfully.