Currently, the CircularProgressBar indeterminate animation is based on AnimationManager. All AnimationManager animations stop when the static IsGlobalAnimationEnabled property is set to false. 

Add an option to keep the indeterminate animation running even when the global animations are disabled.

This option will be useful where the animation is a main feature of the control and it is not meaningful to stop it. But at the same time, you need to globally stop the secondary animations (like expand and collapse).

Placing an instance of the RadCircularProgressBar element in a panel that measures it with infinity could sometimes cause it to increase its size.

As a workaround, you could either set a fixed size or use a different panel, for example, a Grid.