[Open] Disappearing contacts and relationships of Sims

Same issues as well. My new Sims I met at parties all dissapeared today. At one point my contact count was 0/50 even though I have 50 contacts. After a few hours my contacts reverted back to 50/50 but none of my new friends I started relationships with like Study Buddy, Debasing Debater, and Romancing the Times returned. In other words I lost all my newly created friends.