(2017.4) Bug or known limitation? Progressive Lightmapper, Realtime GI, not updating lightprobes.

I'm having an issue with Progressive lightmapper and Realtime GI. It seems to work, but when I look at my lightprobes, they do not update as the lighting changes. If I switch to Enlighten this works flawlessly, but the bake takes much much longer.

I've made a video to demonstrate the issue. Is this a known limitation of the experimental Progressive Lightmapper? Or is there a workaround I could use to avoid switching to enlighten again?

Kinda negates the meaning of "Realtime GI" if the lighting from that doesn't work for lighting realtime objects at all.