Transaction not yet indexed

mfH18RC3gvuUTaUqaLt76Vswf2EywnXWKpyNHDpDuLUNuMeoatiJbDZYAQAXTDZF2vv5C6zgnJMLjRZZDEE9Mv1

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