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Fixed in Unity 2018.3



Found in


Issue ID




"Rect Transform" component is messed up when dragging "Canvas" prefab on other "Canvas" object

Assets Management



Priority: 2Necessary for shipping a final release


Severity: 3Secondary functionality broken

How to reproduce:
1. Open attached project "" and scene "main"
2. In Project Window, drag "MainMenu" prefab on "UIRoot" object in Hierarchy Window

Expected result: the white image appears in the center of the Game View
Actual result: the white image is not centered. Prefab does not save "Rect Transform" component correctly

Reproducible with: 2017.4.3f1, 2017.4.5f1, 2018.1.4f1, 2018.2.0b7, 2018.3.0a1
Not reproducible with: 2017.4.2f2

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