Hello
I'm using 100.15.2
window version 1809
In my application I have a control that allow the user to change the Brightness/Gamma/Contrast/Opacity of All layer that present in the application
While app is running changing, the above properties changes as expected
But when the user lock the screen, while the app is running, wait a few moments, it seems the all properties value set to zero
When I check the properties values, they look as i expect, the map, gamma , for example, matches the zero value
I am unable to reproduce the problem with latest version of ArcGIS Maps SDK for .NET version 200.6.