Transaction not yet indexed

mt53YDfkJQZqPtW85GSaTZBwYmLGDt6ZeSyXZ7TQVV7SYKG2LqZmj2UyLT5dzdUz3mGFUSW8BEd9PakhxtYeLcH

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