Hey there, welcome to the inZOI forum!
I think this sounds a lot like this previously reported bug: Social Interactions Fail → can someone from the team please merge them?
Could you please share your affected save file, if you still happen to have it? That’d help to make detecting the bug easier. If you haven’t done it before, here’s a guide including all three ways you can upload a file: How to Send User Files to The inZOI Team (Updated) 