Insignia Roku TV Suddenly not letting me screen cast.

A warm welcome here in the Roku Community, swamich3!

We appreciate you letting us know about the screen mirroring issues you are currently experiencing through your Insignia Roku TV, and our sincerest apologies for any inconvenience this may have caused you.

In this case, we'd be more than willing to coordinate with the appropriate Roku team to further investigate your Insignia Roku TV and determine the cause. With this being said, kindly provide us with the following details below:

• Roku device model, serial number, device ID, and OS version. (this can all be found in Settings > System > About)
• Tracker ID (when you see this issue occur, press the Home button 5 times, followed by the Back button 5 times, and provide us with this ID)
• Your PC model.

In the meantime, your efforts in troubleshooting your device are highly appreciated. We'll be looking forward to your updates!

Best regards,
Carly