Ambient Color not affecting scene when using baked GI

Hey guys,

I wanted to know if anyone could help with this- I'm using baked lighting for my scene, and in previous versions of Unity I would use the 'Ambient Color' setting to change the overall lighting and the color of my shadows. However, in newer versions of Unity (I'm using 2017.1.2p2), changing this setting no longer appears to affect a lighting environment using baked GI. It works fine for me when using realtime lights, and I'm using Unity's standard shader so it shouldn't be a shader-related issue. I know that the ambient color doesn't affect a closed-in scene such as an indoor room, but my scene is open and should be getting ambient light, so I'm a little puzzled. Is this a known issue? Is there some reason that ambient light and baked lighting/GI no longer jive together? Is it something that I can fix? Thanks for any light anyone can shed on this. (No pun intended)