Transaction not yet indexed

MPZZTS8rnWBWV8tc7FzuM2jVMJznAj5hzkYKy3HLY5m2jmEG31LAKNMUi7qb4TsrV96hZL5i3AMwQkCTMB3ePN8

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