I'm in a hurry do I didn't mark this up with arrows, but here are two screenshots. notice in the middle pane that the tabs are weirdly shaped. This is a normal frustration of mine (I want the tabs to be the same size always), but I have no idea why the tabs get large like this. In the two screenshots, I have simply switched from one resource to another.
Notice that the active tab in the first screenshot is small, and the book to its right is VERY LARGE. When I click on the VERY LARGE TAB, it gets small and the previous tab became large.
Here are logs if you fancy them: 2543.LogosLogs.zip

