I s there any obvious reason that I don't see the photos, just large gaps?
Hmm, I'm able to see them. I bet the issue has to do with Picasa being retired, so now I have to get the URLs from Google Photos. They make it really difficult to link photos in non-Google sites. When I right click and choose "copy image address", I get:
The forum doesn't let me post photos this way, but I found a workaround by adding "-temp.jpg" to the end. Like this:
It's frustrating to hear that it's not working for some people. I'm going to be devastated if I have to move my tens of thousands of photos from Google to some other site.