The URLs used to obtain the highest quality images from tumblr have changed. Previously, you had to remove the numbers at the start and change the numbers at the end to "raw" so the URLs looked like this:
media.tumblr.com/906de15f...fevbRn491wad3rgo1_raw.jpg
Now you need to change "xx.media" to "s3.amazonaws.com/data" instead. You can change it to just "data", but that throws up security warnings. The links should now look like this:
s3.amazonaws.com/data.tum...fevbRn491wad3rgo1_raw.jpg

(Yes, the first link I provided does still work at the time of making this post. Some old raw links still function but most don't work anymore, or at least they don't for me.)

You don't need to make a new thread about it when there's already a thread going about the exact same issue.

I figured more people would see it this way but ok, my bad