Transaction not yet indexed

ymmfLcJGTvSHroeoQfWqR56nTYrWD9MjMW3exSt1iqGHCZpw8df5hBGhsVLMF2ZWSBvu4oEN7pha94pqvLdDYVU

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