Unreal DLSS Plugin Forces Screen Percentage Size Even When Unlocked

I just installed the DLSS plugin for Unreal Engine 4.27. In the Project Settings I set
Enable Screenpercentage MAnipulation in DLSS Editor Viewports = ON

How ever any time I adjust the DLSS settings in a viewport the ScreenPercentage Size is automatically set down to 66%.

Is there any way I can stop if from setting the screen percentage size to 66%?

Thank so much for any time and help