uBlock is missing from the right-click menu but only in certain places

uBlock removes all ads from https://www.the-race.com/category/formula-1/ , I'd like to remove the 'Go Ad Free' button in the bottom left corner too, but when I right-click on this button uBlock is missing from the context menu - why? I have four other extensions in this menu, and they are all there, only uBlock is missing. Cosmetic filtering is enabled and uBlock is present in the menu when I click everywhere else on this page.

I am NOT looking for advice on how to block this button - I did it, I only want to know why uBlock is not present in the menu - is it a bug, feature or some nasty anti-adblock stuff?

chrome 126, uBlock 1.58