SpriteKit scene screen offset on iOS9 / Xcode7

Question

I moved a SpriteKit project from Xcode64 to Xcode7, ran it in a iOS9 simulator and the screen content is shifted. (It is not shifted when running in iOS8 simulator.)

iOS9 Simulator screenshot:

Zooming the SpriteKit scene in Xcode7 scales the frame and the content with different centers. When the scene is not zoomed out or in, it looks perfect; but with zoom out it looks like this: (note how the yellow frame is not aligned with the node anymore)

Xcode 7 scene zoomed out screenshot:

I created a new scene to see which details differ.

Scene in Xcode - first bad - second good:

Node in Xcode - first bad - second good:

Note how the anchor points of the scenes and the positions of the nodes are differing between the good and the bad version.

I can manually change the bad values to reflect the good values. This will involve moving 20 to 30 nodes. I would like to move these nodes exactly - say - by (384,512). However, just using the mouse they will end up at some fraction position (212.561 instead of 212).

Question 1:

Can I move a group of selected nodes by a specific number of points in Xcode7?

Or: Are there "guidelines" to which I could "snap"?

Question 2:

Can I import / export / save as / ... the scene, so that "things are good"?

(Zooming in Xcode6.4 kept the yellow frame and the nodes aligned. Now in Xcode7 I'd like to import the scene in a way, that again zooming will keep the yellow frame and the node aligned - in a hope that this would also solve the scene offset in the iOS9 simulator screen.)

Answer 1

With the release of Xcode 7.2 the issue can be fixed by opening each scene file ( .sks ) and saving it once. The yellow frame and the content (see the screenshots in my question) are again aligned nicely to another when zooming in and out.