Consider the following scenario. In Microsoft PowerPoint for Mac, you select several objects. One or more of the objects is a movie object. Then, you use the Group
command to group the objects together. Next, you create a new presentation in a new window. Then, you switch to the first presentation, and you arrange the windows so that the windows overlap. When you try to drag the grouped collection of objects from one window to the other window, you cannot drag the grouped collection of objects to the new window. This problem also occurs in other Microsoft Office for Mac programs.
To work around this problem, move the movie objects separately from the other objects. You can still group the other objects together.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.