Transaction not yet indexed

ZECRgTPp3PQYu3Wjv4TrTtfAW2Xj3NEnALTBvSUMKXhacFeB6j5TogX4eUD3Q7w9TVabrK8DNLA3vaD7wrUKm21

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