Was using a regular Ryzen 5 1600/Radeon 6450 combo for the past year, and everything worked fine. When Raven Ridge launched, I got one, and replaced the 1600/6450 combo (the silence is wonderful) with the 2400G.
Since swapping in the 2400G, if I leave Powerpoint open for more than a few minutes, sections of the screen start disappearing. The upper right control panel (minimize, maximize, close) reverts to orange/white and the icons vanish. Some of my slides vanish in the slide viewer panel.
Absolutely not sure what to do at this point. I did a MS Office repair install several times, but to no avail. The only thing that changed, was the GPU/CPU and the driver distribution.
I would file a bug report, but not even sure how to describe it