Achievments not Unlocking XBOX X

I believe I finished this achievement months ago. I tried to log out ant restart my xbox series x, but this achievement is still not unlocking

Hi, I just run into the same issue on my Xbox Series X. Ingame the achievement is unlocked and the Xbox achievement is stuck at 99%. The trigger for unlocking the achievement is the ingame counter. Since this is done in my save the achievement will not unlock.

I had the same issue with the achievement to kill 40 enemies within 3 seconds by bone spear.

I was able to get this after going offline, delete my save and redo it.

After that I restored my account via the cloud save. Is was not a big issue because you are able to get that achievement within a few minutes with a new char.

This achievement now requires several hours to redo it (kill 5000 cursed enemies).

So the method above is not really an option.

From my understanding and because this happened on 2 kill X enemies achievements I think is this caused by killing more than 1 enemy in the exact same millisecond and the trigger is on counter=x and not counter>=x. And then it is stucked.

Avatar (anime series)[360] just need to press X and you unlock 1000 gamerscore.

That is the easiest achievement I unlock

Technically, there is a way to clear achievements: Gamerscore reset by the Xbox Live Policy & Enforcement Team. This punishment is usually reserved for anyone using external tools to unlock achievements. When it happens,
all achievements earned thus far will be cleared and locked, making them permanently unachievable for that Gamertag.

You don't want to do the above. However, you have options to unlock achievements a second time:

1. Unlock the achievements again on a separate Gamertag.
2. Unlock the achievements on a different platform (e.g. Windows, Xbox 360, Series X)
3. Unlock the achievements in a different region (e.g. Japan)
4. Unlock the achievements for a physical disc version (which may also have a separate region).

Options 3 and 4 are dependent upon the specific game. Consult a website like Xbox Achievements or True Achievements for details. According to the former,
Minecraft currently has 17 versions available to unlock Gamerscore, excluding Minecraft Dungeons.

Achievements unlocked while playing on a series S/X aren't separate,they're just the same as xbox one achievements.

It's not like the xbox 360 & xbox one where the achievement system was made slightly different,the xbox one & series consoles use the same achievement system.