[MAGNAT2645]

Originally Posted by BlazingDiancie Demoshields are still broken with both this mod and Custom Weapons 3. Also a TON of base weapons return "Invalid Weapon Index" when you try to give them to yourself, but for some reason, if you set them as a custom weapon, they work perfectly. What is going on here? And before you ask, I am using TF2IDB with an updated database.

Sounds like you've set convar tf2items_use_tf2ii to 0.