I think some of my weapons have that issue. Urgh. I feel like avoiding the game for a bit until they fix it. My PP-29 was almost at the end of Mastery 31, about 25/30. Now it is 0/30 for Mastery 31.
My MP9 keeps losing my attachment setup. They are unlocked, but when I start a game the weapon is back to its default with nothing available in the cross menu.
Only seems to be this weapon.
I believe it's occurring (even now) when you go to add items or change items to your gun loadout. Then if you are still in that menu changing items the next match starts up - this will often cause those attachment assignments to be cleared or lost. You can sometimes go back into collections, loadouts, find the loadout, click on the gun at the bottom and reconfigure then it works again on next spawn, but it is still sometime dicky and does not always fix immediately. This seems to be more likely to happen when you have just earned a new item, and go in after the game to edit - then next match launches.
Happens with different guns for me.
Also just now (and a few times recently) the game set the resolution to lowest on launching, very hard to see anything to fix it. Happens a few times, but could be if you use Alt+F4 to quit the game the settings get corrupted (rather than defaulting to a backup set).
