iphone simulator do not respond

my iphone simulator sometimes don't respond to any user interface exept the home button. I lauched an app,it works all right,howerver after 2 or 3 clicks on the UI,it freeze,and do not respond any more, the only way makes it work again is click the 开发者_StackOverflow中文版home button.

If anybody comes to this thread searching for solution on cross platform , Xamarin with setup

Mac OS Version: 10.15.4 (19E266) Visual Studio Version: VS 2019 Professional 8.5.1 Xamarin.iOS Version: 13.16.0.11 XCode Version: 11.4

,,this was bug which is fixed in quick update 8.5.2 by Xamarin team