When version 1.2.1 came out, after letting the app update automatically, I was given a number of achievements I had already unlocked, and a few others were listed with a percentage of how much I had completed them. Most of these percentages progressed normally as I completed the objectives, save for both achievements regarding caps, and both achievements regarding levelling up dwellers. The two caps achievements are listed at 90% completed and 9% completed, which is already odd considering I had collected 500,000 caps at the time of the update, and they have not progressed from those percentages even though I now have 750,000 caps. The achievements for levelling up dwellers have also stayed at 0% even though both before and after the update I had levelled up dwellers all the way to 50. These are the only achievements acting unusually. I am using an htc desire 510, running the app on version 1.2.1, when the update happened I continued building over an old build, and I allowed the app to auto-update.