I create a blank sprite kit game project in Xcode 7 and run the starter project that was created by xcode. Everything is displayed as it should in portrait mode and scene contents are still (i.e. not moving/jittery) but when i change to landscape mode the scene is moving slightly, feels like the scene is jumping up and down by like 1 pixel.
When running on the simulator in landscape mode, the scene is fine, but when run on the device in landscape then its jumpy.
I also tried running the DemoBots sample project from Apple on the iphone 6s plus and it is jittery also.
Is this an issue with spritekit, or is it the way iphone 6s plus renders on screen due to downsampling?