The input OTP does not meet policy requirements, OTP length = 16
Under VIP Integration settings the you must provide username and ONLY OTP in the test settings dialog box.You are providing username and password+OTP in test settings, due to which test settings are failing.We could see in validation server logs it's failing with OTP length = 16.
Also, Do not copy and paste the shared secret from Citrix integration to VIP integration settings. Type the shared secret in the Shared secret field of VIP integration settings.
For the vsradiusclient_test make sure that you use vsradiusclient_test.exe for windows64.Use the following command (must modify the below example parameters as per your settings)