Transaction not yet indexed

Mb6UUMx1tFDMRM4fWHJ4J1ZTRsdgsdVvkvabSFBzCZr7qGKbuFgds1f4PT24fxdb1aTEUiQ1sgXziW1nTKzymQC

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