Transaction not yet indexed

MpL7rv596GFqiFhjCB9DBz2g52uYr2Knhgi7QXAXgkgcENhyAXNzbQQJVs92pBbvG6q9PwMip2Uo6Y4zkz8BRft

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