Problems creating Tile sets in Xcode 8. Does anyone succeed?

Question

I tried to create a set of plates that will be used in the new scene editor in the beta version of Xcode 8. But I drag the image from the asset catalog and I click on it, and as if I never placed the texture there. I cannot figure out how to get tiles to save image data.

Before:

After I move to another file, click "Back":

Then the scene editor will not let me select a tile for drawing. Has anyone managed to save image data in a tile and use it? Any workarounds? Anyone who can download a tile set Xcode project that I can try to modify?

Answer 1

After making changes to the tile set, just press cmd + S (or click File → save) before clicking. Then the changes will be saved