When attempting to pull a variable out of the Variable Window, roughly 9 times out of 10 I am unable to drag a variable out to get a reference. There is no consistency that I have found that causes this behavior but is prominent in any graph I create on this OB. This may be related to an issue of the variables in the Variables Window maintaining their "OnHover" outline effect after being deselected, though I am uncertain of they are related or just both happen at the same time.