Transaction not yet indexed

MPMUrtvM2uS83eMbWsJpPLvNzb3nyvcp8JUvXRtyqKnNX9rdAdjcsR5yfaAtABJCTzu4c44RW5Z1Amrrj7YPKnk

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