editing a video!

It`s interesting, I had such such problems too and could not fix the error. I think it is possible to do so. But it is very important to use a proven video editor. I can advise you on Wave Online Video Editor with which you can mount, for example, a lyrical video for your project. You can go to this source to find out more information and get acquainted with the functionality. I have been using it for several years now and am always happy with the result.