Normally logged in. Tried logging out, same. Then logged back in. No difference. The thing is, I can see some (most) attachments. If I post a pic from my pc, I can see it on my phone. If I post a pic from my phone, I cannot view it on my phone, but I can see it on my pc.
I think viewing attachments posted from “i” devices is the problem. Probably a setting I’m missing.

"use it 'till it breaks, replace as needed"