[2021] MOVED: some achievements bugged?

Yesterday they slashed all the gamestage achievements in half. So for example, the old gamestage 1000 achievement is now 500.

Since I have not logged in for Steam to track achievements on my account yet, you can see where there are some discrepancies in the amounts.
https://i.gyazo.com/de3e9031c1a8561feeb32ed5a36a0f7c.png

So the goal here used to be 1000, but is now 500. However my progress for the goal is listed as 720/1000.