Why can't I sort by role on the heroes screen

[Mike_is_the_best]

So before a few days ago, I had my heroes sorted by role so I could see what they were good for but when I tried to change it back I didn’t see the option to sort by role anymore can someone tell me why that is happening

[Filadae_Djaq]

They are filter options now

[Mike_is_the_best]

Thanks for answering my question this helped me very much