I've noticed a change when I search for a pattern. In the past, if I searched McCall's 6145, I would get links to
McCall's 6145
McCall's 6145 A
McCall's 6145 B ... and so on.
Now, it's only showing the pattern number without the alphabet letter entries.
When I tried to create McCall's 6145 A, I got a message saying it already exists with a link to that page. From there I was able to update my current link under Vendors.
Hopefully this is just a temporary glitch.