Transaction not yet indexed

NUG2xkGmAMJyBemDAgBSC72RPynKpYcSP56dRavfrMyv8TJN1Jo51VvmQbkxkfAqtWCaWtwESvt8wyTeCMESvvR

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