Cannot broadcast Cosmos SDK (invalid pubkey)

[gomesalexandre]

Overview

Note, this is happening in develop only, this isn't in prod yet, nor is it in current release, but will be a bug in the next one and requires immediate fixing before we can proceed with next release.

When trying to broadcast Cosmos SDK Txs, we're met with this error on /send

{
    "message": "failed to broadcast transaction: codespace: sdk, code: 8, description: invalid pubkey"
}

After bisecting, confirmed this is a regression from the BIP44Params work done in shapeshift/hdwallet#696 / #8261

References and additional details

See BIP44Params work in

Acceptance Criteria

• Cosmos SDK broadcasts (THORChain/RUNE) are happy again

Need By Date

No response

Screenshots/Mockups

No response

Estimated effort

No response