For last 2 days I'm struggling with this problem, and I hope there is a solution rather than go to previous save.
It started in China, suddenly I couldn't see any mark/tag in map view, not for buildins, not for Adventures, Special Merchant nor Cellebrities, Collection Helper was useless.
Before this I had buggy trip to China (-1 day in adventure journal) but they returned safely so I continue playing.
Once they were back map tags are shown in SV, but soon they dissapeared here too. Now they are always present only in saved file before first buggy trip.
I tried restarting many times, both computer and game. No filter is on in map view. Buildings and Sims and adventures are still functional but it is hard to find certain Sim for adventure, or to track down a party, and I have to remember all purchased lots and click on each building in "View My Sim" View. Adventures are extremly hard since I had to stalk Special Merchind home for 2 days to catch him just to report in (for some reason he wasn't in Market nor Academy during day)
Collectables are now only shining, and ghost tracker is completely useless.
Saved file in main menu doesn't show a home, just family. It's empty picture where there should be a lot where it was saved. (Only 1 saved file show that, but map tags are also missing in games saved before and 2 after that blank lot pic in main menu).
Any ideas before I plead for returning to previous save game in dynasty thread?
