Transaction not yet indexed

AmpSc2SkH6CahKbaAySpEbSBiXhKx3znq2AEHvK2cmPof8xS8odt3J5YyuFcHzYjQmCbNgpobKJc6yUdGEoc8Hn

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