Transaction not yet indexed

WMM78t3sDbj5kHWf3f6Pw48FrALHEWHVtGqdBm8FFh5Zsk7VpTQZMABY2qB1MbBfdvTSFpDLtKEaDfnCc9SMegC

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