Unable to close apps after 12 update
i just updated my IPhoneX to IOS 12 and now I am unable to close my apps. I can slid the screen up from bottom to bring up open apps, but when it hold finger on an app to activate the red minus dot nothing happens the dot never appears. I am currently unable to close any apps only swipe them up to get to home screen. I went through tips to see if there was something new about this in the update but did not find anything. Help please!
iPhone X, iOS 12