Thanks for the help on this. Seems the issue is resolved now that I found the missing meshes. As soon as I reloaded the sim without any cc, he was able to greet visitors. I put everything back in game, including the missing files and it worked as expected. Thanks again.

I tried removing all mods/cc other than people and the same problem happened.  I tried with a different sim in the same hood and there were no issues.  I did notice that the sim I am having trouble with (as in the one who cant seem to keep a guest at his home) is missing a mesh - I get the floating head in the shower.  Could that be causing a conflict with visitors?

I don't think timing is the issue.  Both sims are adults and the invite was in the middle of the afternoon (neither have jobs as both are sims I created and didn't get around to finding them work yet).  I'll check with clean installer for the CC, but other than using it to load content, I haven't used it for anything else so not sure what I am looking for.

Apologies in advance if this has already been answered, but I couldn't find anything on it..

Been running into an issue where sim #1 calls sim #2 to invite them over.  When sim #2 shows up at the apartment, the door opens, and then they immediately turn around and leave.  Is this normal or anyone else seen this happen? It makes it a bit frustrating to play when you can't invite anyone over! 

If this isn't normal behavior, I am guessing it has something to do with custom content - I dont have any hacks installed (at least not that I am aware of).  Is there a simple way to figure out what the problem is?