I upgraded from 4.0.2 to 4.0.3 and everything seemed fine. Candy chat looked good until we tried the video. It seems Jistsi video bridge will only allow the first person in the video chat to see remote video. The 2nd person in the chat only sees their video. If the first person logs out and then back in then they can no longer see the remote video but the original 2nd person now can see them.
I haven;t tried with more than 2 people. Not sure what would happen with a group chat.