Images not working on android

Starting from a few months ago, images don't work on any android clients (Sync, Summit or Jerboa). I would like to get this acc to work again.

Other instances' (.world, nsfw) images load fine. This happens when using or not using a VPN. Images load fine when using alexandrite.

How would I even begin to debug this?

Edit: attached an example corrupted image file:

Edit Edit: Android 11 didn't support AVIF codecs, updating to android 12 fixed the issue.