Increase the height of a line visualization by dragging down the bottom of the visualization. Then collapse it. When expanding a line visualisation again, the height of the visualization is minimized to just the header, making it look like its empty. Very confusing for users.
Steps to recreate:
1. Create a line visualization with multiple data elements. 2. Then increase the height of the visualization by dragging down the bottom of the graph. 3. Then collapse the visualization using the standard chevron for the graph. 4. Save and close the workspace. 5. Open the workspace. 6. Expand the visualization using the standard chevron.
7. See that the visualization height is not expanded and instead is minimized.
I suggest the custom height setting be maintained when expanding and collapsing the visualization.