Transaction not yet indexed

Nk6xUpWkSYvruLWd2fDSYFJPPydmZFF3z5JbN7S5aGx7dpxv8Y8WMYwgoiW4eqBAvHztNHzTQ5QcpvYvcWFDbK6

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