Ok Metro, you ready for my next buggy moment? lol I took my adventuring sim to Egypt, when I got back my invisible sim was gone. As in, no little box that I could click on and ask him to do stuff, as if he's no longer a part of the household. But he still shows up as invisible when I click on the relationships tab, and in fact it still says he's a household member. I thought I'd try to get his wife to invite him over, maybe try to invite him back into the house, but when I click on his lack of face no options come up. It's as if he's totally disappeared now.
Thankfully he had already completed his lifetime wish, and although I don't remember exactly how many LTHP's he had I'm sure it was over 100,000, but just barely.
So what do you suggest at this point? I'd be totally happy with completing the challenge with 3 sims. I really don't want to start over. I'm on Week 4 Day 5, but I've done 72 days of traveling.