When you go out of stealth mode all players on the server become white/army color
How do you mean? They become that colour just to the person who came out of stealth mode or everyone sees them as this new colour?
They become only to the person who was in stealth... And i tried everything and only reloging worked to get player colours back... So if you go to stealth and come back you wont be able to recognize anyone
I've fixed this for 1.7 now. Let me know if any similar issue arises.