FFS. Both showed up, but it inserted them into the middle of my text rather than at the end.
So far I'm not real impressed with the platform's functionality, but I'm going to give it a week.
I can't see this every replacing Facebook though. I hate Facebook, but there aren't any notable barriers to entry, and posting at least works. If I'm having this much trouble with Friendica, I can't see anyone who isn't tech savvy ever using it.
I'm going to add another random picture to this reply to see where exactly it shows up.
Anyway, it looks like my contacts are now showing up (although it's still jacked up - it says "3 contacts" but shows the profile pics of my four contacts. It looks like the .jpg screencap I took is showing up, but not the originals, which were .pngs. I'm going to try uploading both file types
as part of this post.