Smoke module for guardbuddies no longer works

[Lost Generation SA]

The smoke module for guard buddies used to be pretty dangerous, giving a dose of ketamine to anyone without a gas mask. I just tried it repeatedly on lljk #1, after setting a monkey to arrest. No ketamine, not even a weaker substitute. Neither the monkey or myself were knocked out, or had any ketamine in our systems afterwards. The guard buddy still releases a cloud of smoke, but there's nothing in it.