can't get videoplayer on top of mask

i do have a hotspot video in a panorama and to emphasize it a bit more against the background i want to use a 70% white layer between anorama and video.
with any other image this works fine but no matter which zorder settings i use the video is always covered by the white layer. (i use a blank white png with alpha 0.7).
why?

Allright, I could solve this one by making the hotspot player a plugin player.
Unfortunately the video still starts running with the start of the scene when I use pausedonstart="true" together with visible="false".
Any ideas?

Thanks
Jürgen

It seems to be a bug.
Video pausedonstart not working