Sometimes when signing in users will sign in at the MYIDM screen after the config file process and it will just bring them back to the MYIDM screen without moving forward.
Follow the steps to solve this problem:
Settings > Safari > Clear History and Website Data
Also check passwords saved anything regarding to sofapps.net or Wickr you should remove so your IOS device is no longer saving incorrect passwords. Link below to help.
Then sign back in as normal in Wickr Enterprise