I don't think EA cares about anybody who plays their games as long as they get paid cuz all of their games have lots of bugs and issues they're not fixing
The Sims 4 gets updates with bug fixes regularly.
Hey all, thanks for letting us know these Sims are constantly in your home! Can you provide us with Player IDs from your game so we can take a closer look at what is going on here? This page explains how to find a player ID: https://help.ea.com/en/help/the-sims/the-sims-mobile/find-your-player-id-in-the-sims-mobile/ (13 numbers)
Yes I too have that Blue Haired NPC who will not leave my house. It;s so very annoying as nothing i do seems to make him leave. My Player ID# is 1003538509253 I would so very much appreciate if you guys and gals at EA could please fix this problem. Thank you for your time and help.