There's a little issue with magicam.
In attached file there are two layouts. In one GreenBox sprite is using scrollto behavior, in second one magicam follows GreenBox sprite.
If you run layout with scroll behavior you can see it scrolls smoothly. But in layout with magicam you can see it starts to shake after some time.
You only need to run Magicam layout and wait. It can happen straight away or after few second, but it will starts to shake every random amount of time.
I made background static so that "shake" is more visible.
Thought there is something with "Follow with lag" but it's happening using simple following even without any lag.
Edit: Especially in debugger. Shakiness is so strong that I'm unable to properly debug my project, I had to switch to system scrollXY.
Forgot to mention, my project have 30 objects in total, steady 60fps, Pixel rounding Off, Sampling Linear - tested in node webkit.