Exactly the same issue that OI have.
Keyholder comes over to spend some time in my appartment before going to the city, and I get the social event bar/timer for the duration of his/her stay,
without any goals to fulfill.
This also prevents me from starting own social events, as it says something along "You cannot plan any social event as long as a social event is running"
It also prevents any traveling!
Whenever one of these key-holder events with empty goals begins you're locked to your home lot. Though the game somehow sees your sim as not at home or "not participating" you can't travel while a social event is active regardless. The only option is to cancel the event. Which makes me wonder why in the world was this feature added to the game? It serves no purpose and adds very little new game play other than a million and a half empty water glasses lying around spoiling all over the apartment.
Same problem for me. Key holder events start with empty goals and the tip say: your sim not participating.
