Student count is different in multi section tab

Strange count behavior of students in the php course

PHP on Exercism

PHP on Exercism

PHP on Exercism

I have attached the link in these 3 links student counts are running differently.

I also did check in c++ exercise same issue is there also.

Exercism

see

Yes but by using this platform it clearly looks like a bug.

Off course it not’s breaking any page yet.