Rounded corners are not possible with video background

Hi Spectra-Team,

I have a little problem: When I put a video background in a Spectra-container, it’s not possible to round the corners. It seems like the video appears through the rounded corners mask.

But if I use a background image, a color or a color fade it works without any problems. Is there a trick I missed? Or is it a bug?

Best regards and keep up the great work.

Jonas