Ah okay so T_Mesh_B if I am understanding this right is tag 4?
So I changed the tags repackaged and imported and the same thing is still happening. The E option appears in Prefab Editor where all the posters can be picked up. But the posters still cant be picked up in game, Unless tag 4 is not the T_Mesh_B. The only other it can be is 3 if items is tag 0.