Thanks @fasttimes it looks like the problem is that I was copying the image URL by right clicking from that screen, which gave me “https://www.ridingfeelsgood.com/……./DSC08281-800×533.jpg”, and I guess the pixel dimensions were causing a problem.
It was just weird because I posted a random web image today in the T-Shirt thread with no issue. Thanks for clarifying and the reformatting!
I was lucky enough to get in this morning and take in the don in all it’s heroically dirty & empty glory. I’ll see you guys this eve, though, and will be brining the lady, so anyone else who wants to bring a less filthy guest I’ve got some company for them.