[CL] Can't play duets with household members

Just wanted to post an update that I am still having this problem. Hopefully something is figured out soon because it is really stopping me from being able to do a story I been working on in one of my households. With that said all of my households are friends or related so it's just a huge issue all around for them all getting together since the problem exists at a venue and private homes. My sims need their household duet karaoke back pretty please!

hmm and i just realized something. A father and son were able to duet while at home yesterday, but they cannot at Planet Honeypop. It seems hit and miss whether it works at home or at a venue. Husband and wife team were able to do it a few days ago and then went again and could not. I'm still running a clean install that is mod and cc free so I don't understand what could be causing it to happen, resolve and then happen again. I guess that is why the fixer folks paid for college degrees so hopefully they can figure it out. 

They look so good together when dressed up in suits when I took them out to Planet Honeypop, only to find out the problem was back and they couldn't sing together. Yeah, I'm trying to pull some heartstrings if it will motivate someone to dig deep into this problem because my whole game revolves around all the households being artists and musicians :)