Transaction not yet indexed

mpUexV3Ja1t4eT6wNZ2vNgCe8hHaxKCnLn8vdPYuPaqMPWMda8N7mYGWLMkLVRh7XEx45XpHLP1WCm6wQPEKUh8

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