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Fixed in 4.6.3



Found in


Issue ID




m_TransformInfo.localAABB.IsValid when reimporting the example project.



Steps to reproduce :

- import the UI example project
- reimport all and notice the errors


Comments (9)

  1. keni4

    Apr 20, 2017 13:55

    Unity 5.6.0 p1 broke my UI

  2. Thenegotiator

    Apr 10, 2017 19:34

    I am experiencing this bug in the latest version of Unity 5.6.0f3, all of my scrollbars break upon camera movement.

  3. Rosehardt

    Mar 17, 2015 15:44

    Got this error in Unity 5,
    Restarted unity and that fixed it. I had just committed the project in Git and ran a build, so maybe that's a cause.

  4. Feras

    Feb 19, 2015 19:51

    I'm using Unity 4.6.1f1 and i also have this issue where the scroll bar handle is intercepting all the UI events

  5. Saruki

    Feb 10, 2015 10:03

    I'm on 4.6.2f1 and confirm still having this issue!

    Therefore I constated that I have exactly the same amount of prefabs in my scene:

    Could it be related then? (when UI and prefabs are on a same scene I mean)

  6. Derek Wong

    Feb 05, 2015 17:04

    I am on 4.6.2f1 and still having this problem, mainly for scrollbar. Same NaN value on pos Y or X (depends on it is vertical or horizontal scrollbar).

  7. Pixelcloud-Games

    Jan 09, 2015 10:03

    Still having this issue:
    Although I'm using the latest Unity Version 4.6.1f1 and tried creating new scrollbars multiple times, it still produces the error at my place.

    I can still see broken code in the UI however, which might lead to the problem, described in the post here:

  8. leonidasos

    Oct 26, 2014 20:16

    it works in 4.6-21 . Earlier I was testing in version 4.6-20 :D I removed my old scrollbar and created new one.


  9. leonidasos

    Oct 26, 2014 12:47

    Steps to reproduce.

    Hierarchy example:
    -->Panel (Panel)
    ---> PanelContent (Panel with mask and 'scroll rect' script)
    ---> OtherPanelWithToggleInside (Panel)
    ---> OtherPanelWithSliderInside
    ---> Scrollbar (UI Scrollbar)

    Requirements for Scroll Rect (Script):
    * Link scrollbar as vertical to 'PanelContent' scroll Rectange script.
    * Horizontal property in scroll script is not checked.
    * Horizontal Scrollbar property is not linked.

    1. Open project
    * Errors occurred - same as in description
    2. Play scene
    3. Open UI

    All UI elements on same level hierarchy are not responsive. Sliders, buttons, toggles don't work anymore!

    What happend here is:
    --->Sliding Rea
    Handle element in scrollbar (rect transform component) has set NaN value position Y
    After removing scrollbar, other UI elements start to be responsive.

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