Transaction not yet indexed

Df1ssmkEHUCWa9KaqSefJS9mtsCUbN3CCve4ozZixS2JzDAGDY7ud8VBZEeN5dWeUH1K6fYneLWEsCB5g3D9Afn

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