RajaBoopathy ,The issue appears to only affect Hub500 and Hub v2 using 3840x2160 displays. Microsoft found using 1920x1080 displays there is no issue. The app rollout is paused, and a fix will be provided. To mitigate this, you can force the MTR app to use the display in 1920x1080 mode by deploying the following code:
<SkypeSettings>
<EnableResolutionAndScalingSetting>true</EnableResolutionAndScalingSetting>
<MainFoRDisplay>
<MainFoRDisplayResolution>1920,1080</MainFoRDisplayResolution>
<MainFoRDisplayScaling>100</MainFoRDisplayScaling>
</MainFoRDisplay>
<ExtendedFoRDisplay>
<ExtendedFoRDisplayResolution>1920,1080</ExtendedFoRDisplayResolution>
<ExtendedFoRDisplayScaling>100</ExtendedFoRDisplayScaling>
</ExtendedFoRDisplay>
</SkypeSettings>
Put the above in an XML file called SkypeSettings.xml and then deploy the file to following directory and reboot the MTR:
C:\Users\Skype\AppData\Local\Packages\Microsoft.SkypeRoomSystem_8wekyb3d8bbwe\LocalState
This forces all external displays to use 1080p at 100% scaling and the issue is mitigated.