I am using a mac book air with Catalina 10.15.1 I also have an iPhone 7 plus. and use iCloud to sync photos.
I can take a photo on my iPhone 7 and it syncs over to my Mac. When I delete a photo from the photo library on my phone it disappears. However when I open the photo library on my mac book the photo is still there. If I press delete, it shows the the dialog box asking me to conform I conform but it is still not deleted. I can not delete any picture on my Mac ( not just the ones that were sync from my iphone.
Any help please