I tried this a few times and it is always the same result. You are standing next to a player who has the swimwear in a safe zone. That player presses on the underwear button, you will then see their character equip the bikini / swimwear. All fine and working as it should. If you then run away from that player so they are out of range (unload from your view) and return to them, upon their character loading they will be in your screen wearing their outfit instead. The underwear view button is reset for your client. In order for this to work, that player must disable the underwear button and re-enable it again. The bug: when characters reload for clients the underwear setting which that player has applied doesn't load. The server does not re-apply the underwear button setting to clients. A video to show what I mean, and this probably explains why I never see anyone with the swimwear equipped. Unless you are standing next to them when they tick their underwear view button and stay in range, you don't see it.