Transaction not yet indexed

MyYmEFAwh54PiM5WAXDW8R8wFPkxDGhcTJytqAAY1jx7BjHkFrZBxX47SigNdbc1Br7MGa8EJUzp79awS7YfpMA

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