Clone Stamp keeps drawing all over

Hello, 

A few months ago this issue started and I've tried everything I can think of to fix it. Whenever I use clone stamp it scribbles all over instead of it intended use. I used Photoshop 2020 CC version 21.1.1 and a Wacom Intuos CTL-940 tablet. I have uninstalled and reinstalled both Photoshop and the tablet driver. I have also tried without the tablet and it still does the same thing. I have reset the clone stamp tool multiple times and it still occurs. It happens randomly, but once it happens it won't stop until I close and reopen photoshop multiple times and then the cycle repeats. It's really hindering my work so any solution will be appreciated. 

Thanks