I think the real issue is how you place the rectangle.
For me
1. if I click the lower left then the upper right corner of the rectangle, the rubber band shows it on one side, but it is placed on the other side.
2. Opposite way: if I click the upper right then the lower left corner of the rectangle, the rubber band shows it on one side, but it is placed on the other side.
But:
3. if I click the upper left then the lower right corner of the rectangle, the rubber band shows it on one side, and it is placed on that side. Correct behavior.
4. Opposite way: if I click the lower right then the upper left corner of the rectangle, the rubber band shows it on one side, and it is placed on that side. Correct behavior.
Dontknow, this is the same behaviour you are doing in the video. It is the same behaviour, regardless of how the profile is mirrored or which side of the origin it is on in the Profile Editor.
So the result depends on along which diagonal of the rectangle you input the two points.
I think this is an inconsistency. I hope it is not a feature.
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