On PS4, I kill the keywardens but don’t get the challenge complete in chapter 4. Is there a bug or something else needed?
Level 70+ and on torment level, so keywarden appears, but when I kill them, I don’t get the challenge complete 
I’m pretty sure you need to be on torment 4 for the keywardens
Doh thanks. Didn’t scroll right to see the other torment levels. Totally noob