I noticed that whenever I am resizing a child element in a parent element that has a preset style, the position will get messed up after resizing the element. I have seen this with both the DropShadow and RobloxRound Styles.
Before:
During:
After:
Notice the added gap on the top of the resized element. (The resized element was a ScrollingFrame and the parent was a Frame with the DropShadow Style)