Learn more about this change here.
For help regarding Aternos, we recommend you to visit our support center.
With the new 1.17 update out, I would like to reset my chunks with the app 'MCA Selector' as not all of my progress will be gone.So I would like to know if there is a way to reset chunks without deleting the whole 'region' folder itself. Thanks!
That doesn't really make sense.
With MCASelector you can delete single chunks. There's no need to delete the whole region folder, which actually deletes the whole world.
You can download the world on the worlds page and access/modify that with MCASelector.
