3D Subtitles not working but videos are ok

I can get 3D movies to work, but when I download 3D subtitles via Subscene or OpenSubtitles, the subtitles come out spread across the bottom of the screen. Video works though

Any solutions?

Thanks

Have you named 3d files correctly?
http://kodi.wiki/view/3D#Video_filenames_flags

Have you enabled “adjust display refresh rate to match video”?