I haven't used PT4 for a while, but I've upgraded to 4.15.25. Running on a Mac Pro with Mojave 10.14.6 MacOS.
Everything seems to be working except that I cannot change any of the select popup menus. Clicking on (for instance) the Filter options in the View Stats pane, I can't directly modify any of the values (Game, Date, Blind, etc.), nor can I change things like the Number of hands displayed or number of tags selected in the Basic or Advanced panes for the Overview report.
Some of the values can be affected if I click on the select menu and use arrow keys, but the menu itself is never displayed.
Any suggestions?