Lots of Pink Waxcaps

I have had a few Pink Waxcaps (Hygrocybe calyptriformis) on site in the three years since we moved here, mostly isolated individuals. They are a Welsh Government action species and are regarded as uncommon and special. However this year I have a group of twelve in one place although I didn't recognise that they were all Pink Waxcaps until an expert took a look at one of them and told me it was a diseased individual. In fact most of them appear to have the same infection which has discoloured them from their normal bright pink colour.