Transaction not yet indexed

WU6bNLR34LbN1GiGpdHd5zBPKr4mK7ARwU3pXxzWmwgSxAzecLKqMY8zEFecs6jo6q2TKqjs9DRtrCF7dDRs6Lr

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