When trying to add a local adjustment, the cursor for the adjustment brush does not appear. The cursor in use prior to pressing "k" (shortcut for adjustment brush) remains. If I reduce the brush size below 5.0, then the proper adjustment brush cursor appears. However, the cursor will not increase in size above 5.0. This problem renders adjustment brushes virtually unusable. I've tried downgrading to 5.4, but still have the same problem. It appears to be a compatibility issue with Lightroom 5 and OS X Mavericks. Any suggestions?