Self explanatory really but in some threads there is no indication that someone’s post has an image in it. I have to click in the vague area that I think the link should be and then I’ll get the image. The only way I can tell there’s an image is through the post contexts, thread titles etc…
I think this is something to do with slow delivery of the image from the server, TBH. I saw it on my phone then when I refreshed and came back the image was there.