Changing slide properties for multiple slides at the same time

This used to work, now it does not.  When I try to select the slide advances "automatically" or "By user" it will not let me select it from the drop down.  I can only select each slide individually. Sometime it works, but usually doesn't. In the past I was able to select all the slides and then select "By user" and it would apply to all slides. Now it either makes me do each slide individually and sometime it won't let me change the selection and all. Frozen. Sometimes it pauses and then releases and let's me make a selection, now it won' let me change the slide advance at all. The drop down menu does not open. I would like to be able to change all at once as well like I could before. Is there a way to do that? Is this a bug?  I also only let's me change each slide individually in the Full slide view.  I cn not do it in storyview.