Transaction not yet indexed

251EXgUpcDLHkhaK6PvNL2ZbiDzFxAoKKCDT8AtFJcv6CBTg5UUjPMdTYrjaBERHaPaYfzwpXNjh6WbwrGpVvaSS

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