I noticed something disconcerting after this update. When i switch tabs in my ribbon application (and also in DX demos) the content of the tab is hidden for a noticeable length of time. During this time the ribbon tab content appears empty. IMHO it is very ugly in that the first time you notice it you think the buttons has disappeared.
I fired up the same app on the laptop (where the update has not been done) and it looks as expected, not as neat as M$ ribbons but very mush good enough.
Making videos of both versions is not done in a jiffy for me (i do not have screen capture installed everywhere) so i pop this ticket and hold my fingers crossed it is noticeable enough.
Thank you,
/Dany