I noticed that many images embedded in the forums are broken. It just shows a missing image icon. This also happens with some images in my SpriteLights thread here: https://forum.unity3d.com/threads/released-spritelights.360258/ If I edit the thread, the images are still available, so I am not sure what is going on.
I had the same issue yesterday. I just posted links instead. You could also just upload the pictures from your computer, those seem to still be displaying fine.
I use both links and uploads to the forum, but some work and some don't. I think the forum admin needs to take a look at this.
Had the same problem because some of my embedded images weren't SSL(https) Edit - ah probably misunderstood, if uploaded they should of course work -_-
They did! My project thread is now displaying lots of broken images, the least they could do is to show the link to the image instead of showing that icon...
I'm having this problem too: https://forum.unity3d.com/threads/pbs-barrels-crates.454700/#post-2979556 I put the link there, but it obviously doesn't look as nice.