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Fixed in 2018.3.X



Found in



Issue ID




Undoing Add Component action on Canvas changes UI object positions depending on Anchor Presets



To reproduce:

1. Download attached project "" and open in Unity
2. Open "Controls" scene
3. Select "Canvas" in Hierarchy
4. Add any component to "Canvas" in the Inspector (e.g. Mask)
5. Click Edit > Undo or Ctrl + Z
6. Observe that UI object position changes after undoing "Add Component" action on the Canvas

- This issue appears both on Windows and OSX
- This issue happens if UI object Anchor Preset is not centered

Reproduced on Unity 2018.1.0f2, 2018.1.4f1, 2018.2.0b8 and 2018.3.0a1
Not reproduced on Unity 2018.1.0f1
Regression on Unity 2018.1.0f2

Comments (13)

  1. stonism

    Aug 07, 2023 10:17

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    Jan 27, 2023 07:18

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    Jul 31, 2020 11:02

  10. milliemowry

    Jul 16, 2020 10:17

    Oh man, I have tried like 5-6 times to login canvas but every time I am getting a message of the site taking too long time error. There is a website with the name, you can check this to see how quickly a website should load.

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