When you group some masked layers and then use Transform (CMD+F) to resize the whole group, it works. But after that, when you want to drag the group (or any layer in this group), the masks are not dragged correctly (their relative position according to the layer changes).
How to reproduce:
- create a layer, draw something, eg. black rectangle.
- create a mask, draw on the mask with black to hide some parts of the layer.
- group this layer into the group, select this group;
- invoke Transform (CMD+F) on this group;
- change the size of the group by dragging the corner and press Apply. The group is resized and apparently everything is ok, but,
- now drag the group (only drag, not Transform). You will see, that mask is dragged incorrectly. It seems that it is dragged, but for the wrong distance, so in effect the mask relative position according to the layer is wrong.
- what's funny, if you now draw on the mask again, it fixes itself somehow and the layer can be dragged again without corruption. Unfortunately, if there were more than one masked layer in the group, you must repeat this procedure for each layer.
The magic words for today: "regression tests"
Regards
z.