I'm either doing something wrong, or there's a bug.
I wanted to try out the new "Geotagged photo" layer, so I opened the new sidebar, tapped on the entry, added my ExtSdCard directory with all my photos, and then activated the layer. Nothing happened. Thought I might have to wait, because I got a lot of pictures (>23K, >5K of them with tags), but nothing changed.
Now I know the tags are ok, because I use F-Stop as my gallery, and there the map view with the pictures works flawlessly.