Some Folder Icons in Explorer smaller than others

I have a strange issue that I havn't encountered before. Some of the folder icons in Windows Explorer are smaller than others, despite the size in 'View' being set to Large. It's not a major problem but I'd prefer all the icons to be the same size - anyone know how to fix this?

My Windows 11 version is - Version 24H2 (OS Build 26100,4652)