Transaction not yet indexed

MReTcFaLEwJcF8ynuNUp8TJAxNTWQJgkwftsFUkVaUSuTLuR1m9Ce4S3wfiMGXCor4KXoGsLEVw8JZ8RvUXNzfT

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