◆ Overview
The following causes not behaving as expected when it's placed horizontally.

◆ Actual
Width is automatically adjusted based on either highest or widest element within a state once one of the elements in Hover State is edited.

◆ Expected
Optional setting to set a fixed height and/or width of triggering element for hover state.

◆ Why is this valuable to you?
Though if I prepare Master Component with finalized contents each time, it is feasible with current version; however, if this option would be added, it'd be helpful to reduce a prep time for prototype.

◆ Reference
https://xd.adobe.com/view/62a73241-5d41-4051-4c2f-ece3a50bda6d-1496/