Issues with M-Files User Interface Extensibility Framework (UIX) on Client Machines ?

We have set up an on-premises M-Files server. The application is installed on the server, and other machines are connected to it. We are using the M-Files Business Edition.

Currently, I am working with the M-Files User Interface Extensibility Framework (UIX) to create custom UI components. I have referred to the official M-Files documentation for the User Interface Extensibility Framework.

I am facing the following issues:

  1. Does the User Interface Extensibility Framework work on the desktop client?
  2. When I run this on the server machine, the custom component is rendered correctly on the server's web interface. However, when I try to run the same on a client machine, I encounter a pop-up asking for the username and password (as shown in the attached image). Even after entering the credentials, it does not work as expected and keeps showing the same issue.

What steps should I take to resolve this?

Attached is a screenshot of the pop-up issue that appears on the client machine.