Designer - working set "By Name" sorting doesn't work

I’ve noticed working sets have a drop-down menu where you can choose to sort by either name or date. The “By Name” option doesn’t work.

I currently have four working sets. Two of them are defaults (“Applications” and “Recent Applications”) and the other I created. With the “By Name” sort option checked, just one of these four sets shows the databases in correct order based on their titles.

Two of the other sets seem to have the databases in order based on their file path, and the fourth set isn’t sorted in any way that I can see. I suspect the apparent sorting in three of the sets just coincidentally matches the order in which I opened those databases, and the sort “By Name” option really has no effect.