I was using imgur now to upload pictures, but for none of my posts it shows a thumbnail for me in jerboa. It does at least for some of those using lemmy.world, so i assume this may be something lemm.ee specific? Thumbnails seem to be shown for images hosted on catbox.moe or other instances. I just don't get what the difference is.
What is it that would make thumbnails show up?
I read some github issue how instances would store the full size images when creating the thumbnails, which kinda goes again the wish of lemm.ee to not upload images to the instance (and this would somehow be an issue for some third party apps like jerboa, i am not tech savvy enough to really understand).
So i wonder why some thumbnails are apparently created and some are not.