15b2 logo overlay doesn't work as before (in color)

In DV14 I dropped a logo on the timeline (JPEG) on top of the video, resized it (10%, to top left), and in the Color-page (and Edit-page) the logo was visible.
However in DV15b2, on the Edit-timeline, the logo is overlayed, but when I go to the color-page, it doesn't overlay anymore, so I can't export a still with the logo. I know only see a black image with the logo on the correct place.
Alternatively I tried the image burn-in, but that didn't work at all.
Am I missing somthing or is this a bug?
However in DV15b2, on the Edit-timeline, the logo is overlayed, but when I go to the color-page, it doesn't overlay anymore, so I can't export a still with the logo. I know only see a black image with the logo on the correct place.
Alternatively I tried the image burn-in, but that didn't work at all.
Am I missing somthing or is this a bug?