I have been at this for a month. Thus, there has been no lack of effort on my part. It is time I seek some help with this.
I am using the most current version of Shotcut, I believe. Shotcut has had a lot of errors, but I have managed to compensate for most of them. This one, not so.
If I stack two identical videos, and match them up perfectly, and then put masks and different effects in both, what I seem to often get is a mysterious desyncing. These effects are less that 1 second long, and maybe less than 1/30 of a second long. There will be a moment in the beginning where there is an image but no filter effects. Or at the end it will lag a moment longer than it should. Yet, according to the timeline, even at closest zoom, they are perfectly lined up. This is seriously destroying some of the immersion of my video.
Similarly, for some effects, such as sketch, a border appears around the image, when it shouldn’t. Coupled with inverse color, it throws off the effect by creating an unwanted white frame.
The first peoblem is the huge issue, but I would appreciate help with the second one too.