Hey all,
I have passed on the Millennial Achievement example with the missing numbers to the development team to investigate. We tell Steam what to display, but they do the controlling of the displaying. It’s something we are planning to look into.
In regards to the other achievements, as other mentioned, it is possible these are displaying inaccurately due to playing across two platforms. Potentially the progress will move up on one device and then when you change devices it isn’t matching on the achievement data when you come back to that original device.
As all achievements are tracked on their own platform (Steam, Google Play, PlayStation trophies etc)
Hope that is helpful!
Jeto - Support Member