You may see the desktop ticker stopped or partially stopped

This problem occurs when MB STUDIO's video window is placed beyond the edges of a screen like in this example:


The window must be kept within the edges of a screen as in this example:


If you are not interested in seeing that window, and you only have one monitor, you can deactivate the "always on top" option so you can place it behind other windows and it will not bother you while you use other applications.