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It appears I have answered my own question here. After some experimenting I found that an object's auto-resize characteristics are effected by elements in addition to layout or container margins. In this case I had objects (fields, macro text) that extended beyond the original size of the object to be auto-resized, all in list view. When an object auto-resized it was then relative to the objects that were larger than it was originally. The solution for me was to change the original size of the object (bar, line) that I wanted to auto-resize to be larger than the original size of other objects that I did not want to auto-resize, all in list view.