Hello fellow developers!
Very frequently I have this issue: after returning to the scene editor tab in Xcode all the content disappears from the scene.
Steps to Reproduce:
1. Open SpriteKit project with SKS file in it. Put something into the file
2. Go to another tab, switch back. Repeat one or few times if needed.
3. See the empty scene, nodes are all lost.
Does anybody else have it? Any tips to get rid of this annoying bug?