Transaction not yet indexed

ymfHu18MFuqFaDpuP9NGS7miz6Juj5CKmx7K6gZ7kTcQrQq8w8PcjhSEDnMKHTFvoM8q13qYb4ERpmyFQkdfJbV

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