Hey, @Dom Crow. Welcome to the Photoshop Community. I'll move this post to discussions. I'll need more info to help you figure this out. Please share the system info from Photoshop Help > System info > Copy and paste into a text document > upload and attach here.
In this case, you can begin by resetting the Remove tool itself. Right-click on the Remove Tool icon in the Toolbar menu and select Reset Tool.
Is Generative AI set to Auto, On, or Off? Does it help if you change this?
Let me know how it goes.
Thanks!
Sameer K
(Type '@' and type my name to mention me when you reply)