Sorry if this question has already been answered but I have a question about the Light Graffiti Effect. I have been using my Canon EOS 500D T1i DSLR for Light Graffiti photography and after hearing about Kdenlive, I'm getting ready to dabble in videos too. I was finally able to get Kden to respond with my computer and I love the program but I'm slowly learning. Thr problem I've ran into as of late is that when I preview the video in the project monitor and I apply the effect to the video, it keeps the effect OVER other videos if that makes sense. For example, if I have a video where I'm writing lyrics and I'm writing over them in the same areas or frames on the video, I apply the effect correctly but if I restart the video, the effects are still left over and they remain until I restart the program and apply the effect on the video again, and that works until I restart the video. So 1, is this a normal problem and I have to film and edit individual lyrics or parts, or 2, is this a problem in the program. Sorry for the long response and I hope it makes sense. Thanks in advance for the help.
Not exactly sure what the issue is that you describe.
But you should be able to size the effects to only cover the parts of the video you want the effect to cover.
But maybe you could post a screen shot of the project to help explain