Transaction not yet indexed

YKhSmSZXNNdjY53S5FBGi6p1cruFRbJsM5o7ZXRKrKSAFe2hFwymBudQeG5oqJ7Uv1y2ZFHpUUFQ61ZWnTmj6v2

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