Can't align images

Hey Guys, 

i’m trying to capture a citrus fruit and simply don’t get it working.

I’m aware that there’s not that much of an distinct surface on that kind of fruits, but if focus stacking runs well, it should be possible to collect some depth info with RC as well, shouldn’t it?   

I retook my pictures about three times and tried to fiddle around with feature matching numbers but i can’t get it to work. 

I uploaded the file for those of you that might think they could help me out. 

Took the photos with a tripod, no matter what i do RC assumes i’ve taken the pictures from one spot and didn’t move a bit. 

Never saw RC failing this hard, even on hard objects.