Volumetric light for Streaming Levels

I have a scenario, where i have several separate levels (mini-games). All levels are currently placed in one Persistent Level. I would like to build light for them separately, so what i’ve done so far, is that i’ve hidden the other levels, except one, built light. Saved the level, and switched to the next… etc. This seems to work ok, with one exception. The volumetric light seems to screw up each time i do it, so if i build light for Level A, the volumetric light looks fine on Level A, but as soon as i build light on Level B, the volumetric light info is lost on Level A, even though i don’t save Level A.
Is there even support for a scenario like this?