UIAutomation is not working in minimized Remote VDI machines

Hello All,

I am in the process of automating a desktop application (based on C sharp) usingUIAutomation in legacy VBA.

I am actually working in Remote VDI machine. My script is developed inside VDI and the Application under Test is also inside the VDI. I use my local machine only to access the VDI machine. Nothing is done in the Local machine apart from connecting to the VDI Machine. The automation script works great  in the VDI machine. But when I minimize the VDI machine, the script is not working for some controls like Listview, Tab etc.

Buttons, Text boxes and Links are working fine even when I minimize the VDI machine window.

My VDI machine window will automatically get locked and minimized after some 3 minutes of  inactivity from the user.

So Somehow I need to make my script run even if the  VDI window is minimized. I tried this in a physical remote machine as well. The same is the case where listview,Tab controls are not getting executed when Remote machine window is minimized.

Could anyone help me with this issue?

Regards

Arunprasad.S