Weekly challenges do not work Road to BF6

Hi, me and my buddy recently started playing road to BF 6 and his weekly challenges worked on week one and now don't work at all. For me none of them ever worked once. I mean those where for instance you gotta play 1 round Ivo Jima, revive, repair certain amount of stuff etc.(Please bear in mind I do not mean Road to bf6 unlocks specifically, those work fine) . Does this only work in pvp? We only played with bots so far but I've read somwhere that  it should work on solo as well. 

Help appreciated.