Mask: Simple Shape Bug

Hello there…
I think i found a bug!
If you create two color layers, and then add a simple mask to the top layer.
Set Simple Mask “Operation” to Substract, and turn width and hight down to zero.
There is always a little pixel in the middle of your movie.
In the picture you see it very bad, because of jpeg artifacts.


This is a limitation that will not likely be addressed. Here is the source code if you want to work on it yourself:

Otherwise, if you do not want the mask to apply for some period of time, which is likely the reason you need 0%, then trim the filter in the Keyframes panel.

Source code? - oh my god - nothing for me :slight_smile:
but the trimming is the solution. I did not know that!
thank you for the tip.

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