I noticed it too. I installed 1.5.0.29 today and I get the same thing. I did find a pattern, though: When opening the Paragraph panel, I have to resize it vertically. If I select the Character panel and go back to the Paragraph panel, it is too small to use and cannot be resized vertically. If close the panel and open it again, it is too small, but I can resize it again. If I close the Paragraph panel and re-open it without ever opening the Character panel, it remembers the size I set. But anytime I open the Character panel, the Paragraph panel resets to its too small, un-sizable state again. I see the same behavior whether I use the Context Toolbar, the View->Studio->Character/Paragraph menu, or the Text menu.