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Fixed in 2018.1.X

Votes

0

Found in

2017.2.0b10

Issue ID

949860

Regression

Yes

UI component Scroll View increases CPU usage up to 90%

uGUI

-

Reproduction steps:
1. Download project "Broken Layout.zip" and open in Unity
2. Open scene "Scene"
3. Select Profiler tab
4. Enter Play mode

Expected: 70~100 FPS and Canvas.SendWillRenderCanvases() about 0,1% CPU usage
Actual: 5~6 FPS and Canvas.SendWillRenderCanvases() about 90% CPU usage

Reproduced on: 2017.2.0a1; 2017.2.0b1; 2017.2.0b11; 2017.3.0a7
Not reproduced on: 5.6.3p2; 2017.1.1p1
Regression introduced: 2017.2.0a1

Note: after disabling Canvas child Scroll View works as expected

Fixed in: 2018.1.0b2

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