The canvas is not a child.
The UI elements are children of canvas.
1 Answer
1Itβs probably a bug. Try to update unity editor version
I updated to 2020 version of Unity. This did not fix the problem. But I needed to do it anyway. Thx for the idea.
β HI5ME
This fixed the problem. The UI wasn't disappearing, it was way off the scene. Canvas Inspector> Canvas Scaler> UI Scale Mode> (Scale With Screen)
β HI5ME