Transaction not yet indexed

ymCffC6qBR7pFfRwkpeiMD7J1jGAVuuLm5dHNQjJvRKVUj19FFpHh15PS9r5iUxdinaTVP2FkMH2KXHwm2bJfnT

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