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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. EulaHoppe

    Oct 30, 2019 03:36

    I followed the given tips and installed the canvas. But I found that it is not working well. I don’t understand how can I treat with it. It is easy to visit website for essay writing and ask for the solution about that. I installed 3 to 4 times but it has same problem.

  2. EulaHoppe

    Oct 10, 2019 12:58

    I am using both OSX and Windows operating systems on two separate laptops. The reason I am here is that I am facing similar problem in both operating systems. I am unable to center UI object Anchor preset. I have read an article regarding troubleshooting of my windows on website which done me great job.

  3. Parvodeva

    Apr 15, 2019 06:16

    This is very common problem in windows 10 fix connections for Bluetooth audio devices and wireless displays in windows 10 so this helping web page for solution.

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