Apps open and force close

[CaryS21UltraS24Ultra]

I have a Galaxy S21 Ultra.  Over the past few weeks I've noticed apps that would open and then close immediately,  apps that open but when in use,  a function will cause it to force close.  

I've run anti virus and malware software but come up with nothing. Tech support had me reset my network settings but even after that it's still doing the same thing. 

If I restart my phone everything will work for a bit but it's a matter of time before the same thing happens. 

I've been told the next step is a "Factory Reset" which I've done before but rather not if there's another way to fix my problem. 

ANYONE HAVE ANY SUGGESTIONS ?

[Zachary6619]

Press and hold the Home button.Tap.Tap End next to an application to close it.To close all running applications, tap End all.Alternatively, press and hold the Home button and then slide left or right until the app is deleted.

[Zachary6619]

Here's how to kill background apps on Android: Go to Settings > Apps. Select an app you want to stop, then tap Force Stop. The app will relaunch when you restart your phone.

[Zachary6619]

Tap Apps.Tap Smart Manager.Go to Security.Tap Scan Now.

[CaryS21UltraS24Ultra]

There is no Smart Manger under Apps so how do I go to security and scan now?

[Zachary6619]

Press the Application key. To end one running application, slide your finger upwards on the required application.

[NPC1]

Same to me. Using a theme made it worse. So using default theme helped immensely. Still have just 1 app that is not working.
After going back to default theme, I went into recovery and cleared the cache and then hit rebuild apps.
There's clearly something wrong with the ui5 update.
Post back if you do end up doing a factory reset.

[CaryS21UltraS24Ultra]

I haven't even received the One Ui 5.0 update yet. I have a feeling factory reset may be in my near future

[NPC1]

Hmm. That's is odd if you don't have 5 yet and we are having the same symptoms.

[galaxy6424]

Having the exact same issue on Galaxy S22. I have all the latest updates.