Your issue is that overlapping groups’ parent inherit the height of the tallest group (bubble r-line I think). Now your shorter group is actually shrinking correctly, but the parent html element (which you can see in your browser’s dev tools) is likely retaining it’s original height. To fix this, simply stack them instead of overlap. It’s not a bug, it’s expected behavior from the not-without-fault responsive engine. We’re getting a new one I heard. This year hopefully 
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