I saw mentions of an encounter with bandits breaking into your house at night and Korg fends them off and I couldn't get that to occur either, I'm assuming this might be the event they mean.
I do have the latest version and I tried to plummet bandits' morale and reputation as low as I could make it but nothing occurred so...not sure how exactly to trigger that.
It trigger randomly after you reach certain like level with bernard and have done most bernard romance event since it is implied in the event that bernard like you and feel jealous toward korg.