Transaction not yet indexed

mDMM5tRK4dsYmZJAnxTujPgSF6sK4xeoMKmL6pNhUkkY4kntxvYgLBGb1a4Hk8FfZQya3jqGnZtosqx8kRjgtSt

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