Players in the UK are now seeing a "Content not viewable in your region" placeholder for bot/clan profile images. This is because the UK has blocked Imgur as of about a week ago. Here's a random news article about it.
I'm starting this bug thread just to have something to point at as a known issue tracker. Hopefully the situation resolves itself and Imgur gets unblocked for UK players. Regardless, I do loosely plan to start self-hosting bot/clan profile images to eliminate the dependency on Imgur, but that's a semi-complicated project to do a one-time backfill/download of all existing images and not as important IMO as other stuff in flight. But that would be the long-term solution if the UK/Imgur doesn't reverse direction.