Hello,
Try re-registering Camera app. Perform these steps:
- Search for Windows PowerShell using Cortana or Windows Search.
- From results, right click on Windows PowerShell and select Run as administrator.
- Then type following command and press Enter key: Get-AppxPackage -allusers Microsoft.WindowsCamera | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
Let the command complete.
Close Windows PowerShell and check Camera app, it should work fine now.
Let us know if this helps!