Transaction not yet indexed

Ex7cX4k79VScVmdUf1psTEiKfkvYeznFeupR5PtTR8QAQFQ1i1SXC9ZscQJZo55Eqpn17PwHLKGf8hhLsMLsQi2

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