Transaction not yet indexed

ymp8mkR7KMTy3dHBZ7RgJvGTJYAccGbvsdtrSNBCtyai6GSrCid6gUZwRQy3zLcSYFVXamJZD1U9R8kmRKMT1Zt

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