Weapon assignments bugged

After the recent update to the game, that softened up the challenges for some of the Weapons & equipment, I have most of them completed but didn't get the unlock reward from them. I'm specifically talking about the NVO-228E assault rifle & the SG 553R. I've played around 15 matches since that patch & they are still locked for me, despite me already progressing the next challenge in the set. I'm attaching screenshots for confirmation.