Lately when I go into my friends list it nobody shows up as green. It has been doing this for the last..

Your friends could be somewhere else in the world so the time that they play is probably when you aren’t. They could also have unfriended you which is why they are not appearing as green.

This also happend to me when the tiger update came so you might have the same problem with this update. So long story short, I redownload wildcraft and then the problem was solved. I think I just got lucky that time, if you do it you might lose all your progress but I didn't so you can do it if you want. Hope i helped