When I am on the home screen (only two rows of buttons), the last button pressed on each row stays grayed-out after I select another. So if I click on one in the top row, then one in the bottom row, then another in the bottom row, there are THREE buttons in non-standard mode. One (the current one) is highlighted properly. Then there is one other button in that row which is gray/faded, and one in the top row that is faded.
This does NOT happen when I'm in the full list of apps/buttons, just when it's the "home screen" (abbreviated, two-row by default) display.
This just started happening a few days ago.