Transaction not yet indexed

MJ6YkbFKfvDoyTPsKhbjqF4K6e4ejwoZFUe3cqZuobyixmgMeaVyUnyNiRKJkjiQZTCL3CeWuGLFCEaeNeDMY51

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