Double animation when invoking app switcher on iPad

Originator:mcpossity
Number:rdar://42282672 Date Originated:July 17 2018, 3:08 PM
Status:Closed Resolved:resolved with iOS 12
Product:iOS + SDK Product Version:iOS 11.4.1
Classification:UI/Usability Reproducible:Always
 
Summary:
When opening the app switcher out of an app on iPad, the blur animation appears twice resulting in a flickering effect. This can also happen when you return to the app out of which you opened the app switcher by tapping it again.

Always reproducible, iOS 11.4.1, iPad Air 2, German language localization

Steps to Reproduce:
Take iPad, open app, open app switcher by swiping up.

Expected Results:
Blur animation in app switcher should look good.

Actual Results:
Blur animation in app switcher flickers.

Notes:
See GIF of problem here: https://twitter.com/philmcole/status/1007231731425046528

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