Transaction not yet indexed

Nu6j1NGtAzBGHNxMAjSXjeGpAzbNrGqitMN31P7LXRVpmLbdNks4te3wbgswZQpSwBWsLFu54sRWwduAVU5NPY2

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