I had to change the behavior of setting the fullscreen flag because a user reported graphical anomalies if I set that flag immediately upon loading the app, and also when they locked the device and then unlocked it (but only if no passcode/pin or other security measure was setup). So I now have to wait 500 milliseconds before transitioning the app into fullscreen mode, which causes the shifting you have described. I don't have a better solution, because if I set that flag immediately, then some users are going to see weird status bar issues under certain situations. I might consider changing this behavior only for the e-ink version though, unless it gets reported again by a different user, as the slow refresh of the e-ink devices makes the shifting a much bigger deal.
Mike
Mike