Transaction not yet indexed

AMNmGJgLP3YWHRVgKbjD8taGY9AK8eS9io33V7NpqX9qQSnKqfAfydz5TeqyJtxDj58jZejZPoWRuYnjhHDC4Pc

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