Transaction not yet indexed

MNB6qTMpGVtjgxcjibFFbcfvKjeotMgUD6ismGj23ifLMBexzzD5s1j4W7kNmJVS2TML86ay2WY4jVT1fMXnPY4

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