I noticed this cropped up with the most recent update of Ecliz Deluxe, but it was easy enough to fix with User Overrides in WB. I simply set the text size to 10% larger and the problem went away.
However, with the most recent update to WB, I seem to have lost the option of setting the text size larger. Perhaps I am just missing it. I really miss being able to use Ecliz Deluxe and would love to know how to either 1) fix this titlebar issue, or 2) adjust the font size in the newest version of WB.