Transaction not yet indexed

Y646ZUfwCppTPhp8wU5bCFXKXRG5sSNxBSJB2gv8MK92ymddutvGdebX8sRq8aTgJb2XCw7SL4mtoiBqQRjvoq6

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