Transaction not yet indexed

ex6RkLdCtvvtThRga1FSzqfMXJfLbdgFD6TPyiHEKe8HUMPEe8D2J5gnZfZrcpoy7X6mau1A3z7x6PVu6xmmexd

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