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Why do objects sometimes change position when you group groups?
I’ve just been in a situation where I wanted to apply the Earthquake filter to a composite image made up of multiple different groups. I figured the quickest way would be to put all the groups into one uber-group and then apply the filter to that, but when I tried it, the composite fell apart, with almost every object radically shifting position.
Is this a bug, or an expected consequence for reasons that I need to understand? I’ve worked round it by simply copying the filter to each individual group.