Transaction not yet indexed

MNDLVkBt1xbPMDDsFpdzDKFepZs5S2nZAEL1RguQcgVDkwWjMLE1dWvfXVonuDSDBRVTcp8E2evq77e2hY3nfCf

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