Folder Tree in Libraries not Refreshing/Updating (W7)

Under the Libraries node, Public folder, Documents, I add a new folder in the lister pane. The folder tree under Libraries is not updated with the new folder. I added a button with Go "REFRESH=source,tree" overriding F5, but still no update. I checked under \users\Public\Documents and the folder shows up in both the tree and the lister. I go back to Libraries, still not there.

Any insights?

DO 10.0.2 x64 W7x64

What does Windows Explorer do for the same folder/library?

Interestingly, a second DO window I just opened performs correctly, even as the first doesn't. But I mis-stated the case with the first. Turns out the new folder was listed in the tree, but at the end of its parent node (out of view), not in sorted order. I renamed the folder in the lister pane, and the name was update in the tree, but sort order didn't change, even with F5. Explorer performed as expected.

I'll pay closer attention to the problem in the future and see if I can provide more significant information.