Saving config changes gamemode to "10"

in SESM 3.0 saving the config changed Gamemode to "6", in 3.0.2 it results in "10", I can change the entry in the config directly and the server starts. Survival and Creative both ended up setting to the same value for that version (3.0->6, 3.0.2->10). Running Windows 2012 R2, I used the auto installer for 3.0 then ran the deploy in 3.0.2.

I'm not sure if I have anything logging the action but if I should tell me where to find it.