Transparent background in screen capture module

Hi! Could someone help me? I’m trying to make a simple rotation video in 3D view, but no matter what background color or video format I choose, the video appears with a background, not the transparent background as marked. I have orthographic view enabled.

perhaphs the codec you chose to output (H.264) doesn’t support transparency?

A google search suggests that might be the case.

Instead export them as individual images and check whether the background is indeed transparent in the individual files.

Using black background and checking transparent background using GIF work!. thanks