Did anybody unlock weapons then when you played it the next day you have to get your points again to unlock the same thing you unlock yesterday? That happen to me. Any fixes?

I am experiencing similar things and this applies to when I voluntarily exit a server or being forced to by 'connection to your session was lost' or something.
But as to unlocks alone, I read from this forum that if you do it within a server then it would be saved.

Well that's a bother...... hope they could fix this sometimes soon if possible...

There is a "Temporary Fix" for this, please check the stickies as the top of this thread.

What happens is i unlock a new weapon.
Over the course of a few days all is ok and then suddenly i can no longer select that weapon. Its greyed out. And i cant even use a new weapon unlock to unlock it again.