I have noticed that the short-term commitment achievement is bugged. I have seen that there has been a fix for it, but it clearly hasn’t worked.
I have completed a challenge for over two weeks, it didn’t pop the first week and I thought I missed a day, but for the second week I hit all the days.
I have yet to unlock the long-term commitment achievement, but it should be unlocked today… I will report back on that one
EDIT Long-term commitment is bugged too