O K .
i now can see it. feel it. the daylight settings are reset to octane defaults - which are different than the plugin defaults, because the plugin defaults are tweaked to give a nice starter setting for the default daz camera view.
and i must admit, while testing this myself lately, i didn't exactly look at the real numbers, only noticing they were not the defaults that i was expecting so took it for "saved - ok" ... also this was already working (major bug) - my bad - sorry!!!
but i noticed something else in your scene what i don't really like
can you please just open DS, save a scene and send it again? and tell me how much entries the environments ddbox and the render settings ddbox each have...
[edit]: you can skip this - i just merged the scene instead loading it (by dropping it instead file > open), so i of course saw more entries than expected