Had the paint on my m key chip on the logitech g915 tkl, so I contacted logitech on Monday about the problem, and today I received a full set of replacement key wasn't expecting this as it was only one key, all I can say is wow great customer service from logitech.
https://i.-ibb.co-/v4Z4qyP/DSC-0518.jpg
https://i.-ibb.co-/v4Z4qyP/DSC-0518.jpg