The bug only happens when using a m3u8 video and android device. I copied the simple example from https://googleads.github.io/videojs-ima/examples/simple/ and replaced the mp4 by a m3u8 video.
- Use an android devide
- load https://tbourigault.github.io/IMA-SDK-Plugin-VideoJS-Simple-M3U8.html
- start the video as fast as possible.
the preroll and main video will start playing at the same time.