Widescreen panels now rotate at 270° too.
v9.8.1 fixed 270° on the smaller rotating panels; this extends the exact same fix to the widescreen panels (854×480 / 1280×480 / 1600×720 / 1920×462), which were still showing 270° the same as 90°. Now the content flips to follow the physical rotation on those panels as well — so all rotating panels behave the same way.
If you're on a widescreen panel and rotate to 270°, a screenshot at each angle would help me confirm the orientation is exactly right on the glass.