Effects that disappear after rendering.
Hello everyone! First of all sorry if there are mistakes in my message, my native language is not English. Here's my problem: I'm editing a video lasting 18 minutes. I use at different times of the video a background and a smoked effect (with fractale noise). When I'm on the software everything is fine no problem, but after the rendering, when I watch the video, from half of the video the "smoky" effect is considerably reduced we hardly see it! Whereas before the video arrives halfway we can see it perfectly! Yet the settings of the background and the smoke are the same pusique it's a copy paste. How to correct this? THANKS
