Not sure if I should be including a capx with this one, it's pretty straightforward. <img src="smileys/smiley17.gif" border="0" align="middle" /> Take a sprite and add an imagepoint to a frame, duplicate it, and check the new frame. In my case, the imagepoint from the original frame won't be there.
I'm using the most recent build, r74, and I'm on Win7.
EDIT: To be clear, the origin does duplicate correctly. The problem is only with the imagepoints.