Transaction not yet indexed

Mb4YZvac6KZ11GUJVczDYAESMbiyC1UuL24HMrGP1DXofuK42kXDv8Cn92sf2Tt5yEeWdeMF54oraATx34kjo7U

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.