[Blogger] gallery-dl sometimes downloads original sized images but sometimes doesn't

[apersonfrompluto]

Hi. I'm trying to dump this Blogger/Blogspot site: https://www.micmicidol.club/
I'm trying to download all the original and uncompressed images. However, the pictures I get are sometimes compressed (sometimes I even get just thumbnails) but other times I get the fullsized image (2000 by 2000 pixels).
This even happens to me with different pictures from the same post: some images are thumbnails, some are uncompressed. For example this post: https://www.micmicidol.club/2024/04/2021423_69.html
Any ideas how to solve this? Thank you.