Transaction not yet indexed

UU78Lm2zgrsjHnp399AeCoAFRjUzJMwXnVyYaTQ758Fv4eKjMmfeRchPU1Ar2x82Y1fDac2K3pY7naP4f5QBxSU

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