DDPM 2.3.0.9 > Sometimes cannot move windows after system restart when using EasyArrange

Running DDPM 2.3.0.9/Easy Arrange, with "Application Window Snap" enabled, 
sometimes after restart I am unable to move any windows. 

If I try to grab a window title bar with the mouse and move it, the Easy Arrange layout appears for a split-second, and then the window jumps back to the original position.  I must restart DDPM from Task Manager (or reboot) to clear this.

I checked Event Viewer, and every time I tried to move a window while in this situation, an Application Exception was being thrown.

It looks to me like Easy Arrange is trying to set the layout regions before it's actually connected to the Desktop session (i.e., before all the WPF windows are fully initialized), and then it never realizes or recovers from the ensuing exception, and then another exception is thrown at each attempt by the user to move a window.