Deleted screenshots show up when I switch screens

Welcome back cindy359.

I’m glad to hear that the previous troubleshooting steps helped with the deleted screenshot. 

I understand that you now would like to remove Malwarebytes from your Mac. I’m happy to assist you with that. Please use the steps here to uninstall Malwarebytes: Uninstall Malwarebytes for Mac – Malwarebytes Support If you still need further assistance, please submit a support ticket using the link at the bottom of the page or click the icon in the lower right-hand corner to chat support using the previous link.

Let me know the results.

Take care.

Hello cindy359.

Welcome to Apple Support Communities. I understand that when you take and delete a screenshot, it shows for a second when you switch between screens on your desktop. I’m happy to help.

So that we can isolate the cause, let's do some troubleshooting steps. Please try the steps here: How to use safe mode on your Mac - Apple Support

So that I can determine if the issue occurs in your user profile or the Mac, please try the steps here: How to test an issue in another user account on your Mac - Apple Support

Let me know the results.

Take care.