Hi,
I have coded a game and it just finished. I publish it on Google play. And it is popular now…
Yesterday I wanted to update Unity to 5.6 and I dont backup my project files. And Unity3d made my main canvas trash.

Thanks for these unity.

Here is the error: GameObject has multiple Transform components! Merged into single one.
UnityEditor.DockArea:OnGUI()

Unity 5.6 is in (early) beta. It’s expected that things will break - that’s what beta testing is for! Please file a report to Unity to help them identify and address the issue before it’s rolled out.