Single blue pins on map not clickable

[slager]

I can't click on single small blue pins on the map to get a detail expand. The mouse pointer stays in "pan" mode.

I am able to click on the multicolored larger aggregate points to expand those. When one of these expands to a group of small blue pins connected with spokes, I can click on those blue pins. Just not the singletons.

I'm using Firefox.