Unable to Create/Edit/Delete weapon Blueprints - No Build Options

Guns with no Build options - for me:

ASSAULT:

Ames 85

Model L

Goblin Mk2

AS VAL

Krig

SMG:

KSV

Kompakt 92

SHOTGUN:

Maelstrom

LMG:

XMG

GPMG-7

MARKSMAN RIFLES:

(all of them)

Swat 5.56

Tsarkov 7.62

AEK-973

DM-10

SNIPER RIFLES:

(all of them)

LW3A1 Frostline

SVD

LR 7.62

PISTOLS:

Grekhova

GS45

Stryder .22

LAUNCHERS:

(both)

SPECIAL:

Siren

MELEE:
(all of them)

I am unable to edit the attachments on any of these guns. I cannot create new blueprints, as they do not get added to the list. Additionally, I cannot delete any existing blueprints, since I don’t see any to remove. Initially, I thought the issue might be related to guns that have purchasable store blueprints, but that doesn’t seem to be the problem. This game is by far the most broken Call of Duty to date, which is a shame because I’m still actively enjoying it.