Drop Shadow multiple object problem

I created two rectangles in a form, and tried adjusting the Drop Shadow with them both selected. The adjustments work fine for one object, but with both selected, the value for the angle disappears when I drag the small angle wheel, and when I release it, the actual shadows jump to 270.

Entering a numerical angle value works, but as soon as I drag the wheel, things go awry. Similar problems happen with the blur and depth.

Looks like this is a general problem for most kinds of numeric properties. Thanks for the report.