I tried to do a fine tuning masks to get a person out from the video clip, so tried to use the Mask Creator frame by frame. But found some challenges on it
Example:
1. Add (e.g.) BG_Blue Hexagon Loop.mp4 to the video track.
2. Open Mask Creator.
3. Turn brush size to minimal (3) and draw a line to frame.
4. Draw a square.
5. Enable eraser and having minimal size (3) and draw an eraser line through the square.
6. You should have something like this: 7. The surprise comes when you press the next frame (highlighted with green). Or at least the mask change to this:
The lines I have done has been replaced by lines which width is 20. This is happening also, if you draw line with width 24 (max size). That is drop down to 20 on picture. Let see if this will be fixed on 2021.
(VS 2020 build: 23.3.0.646)
