To be honest, I’m likely missing something, but I’m unsure to what you refer with the create “try” functionality. However, I could not reproduce this situation with the following steps:
- Ensure a connection
- Navigate to the Users section and click CREATE USER.
- Select the connection
C from the dropdown.
- Fill all the available fields and create the user.
At step 3. when I selected connection
C a Username field was also displayed in the form so I could provide the username for the user.
In addition, I also tried the Try connection which opens the hosted login page where you may be able to sign up if your hosted page allows to do so and could not reproduce the issue using the default Lock-based hosted page which again allows to input a username. If you customized the hosted page then the amount of information provided is insufficient because any tests will depend on your exact customization.
Finally, if you’re referring to something else completely different from what was mentioned before then update your question with additional information.