Basically, add an option to the ‘Join Paths’ feature that allows it to work in the way it did before the most recent update. Sometimes you need to join two paths after lining up their endpoints at the same point (using ‘snap to points’, for example), and with the latest update, this is no longer possible as the program insists on drawing a line between the two end points, even when they are occupying the same space.
The new feature in ‘Join Paths’ is useful, but also, the AI will only draw the line between what it recognises as the two closest points, and sometimes that isn’t where you want to join the two paths.