Exporting video with transparent background Hitfilm express
i am making animated overlays with HF but I can not figure out how to export it with no black background. I have used both uncompressed AVI with alpha and GoPro cinaform rgb 12-bit with alpha (mov) no luck the black background is there when I import the video to my OBS. I've tried putting a plane behind the image and keying out the color, I have the checkerboard enable, the base .png image I'm using before effects is transparent and works fine in the obs. The background seems to happen when I make the a composite shot to add effects. Anyone that can help?