Transaction not yet indexed

MmU8PgFKsfpMnN6fSbCfndxNDZ7naCJp8s2jAWs2BfVsLZhQmjiDGo5Cms43WGD24q15AxBi13eWycpA7GEA12w

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