Bonus boxes changed?

Samaranth01 wrote:
As others have pointed out, the bonus box with 3 doughnuts seems to shift one box to to right every time. I've used this myself and it seemed to work reliably. My last two, however, did not seem to follow this pattern anymore. The first one followed shortly after I got the bonus for leveling up so I thought that might have affected it. I just got another one this morning, however and instead of being in the box to the right of the last one, it was in the same box as before.

Has anyone else noticed any change in the previous pattern?