ChangeEntityPotionEffectEvent.Gain doesn't trigger

I’m trying to cancel the potion effect gain event when the potion is thrown by a party member.
So far i didn’t succeed.
No matter what potion i drink or throw at a target entity, the event doesn’t trigger, am i doing something wrong here?

@Listener(order = Order.FIRST, beforeModifications = true)
    public void onPotionChange(ChangeEntityPotionEffectEvent.Gain event) {

        plugin.getLogger().info("Potion effect gained");


Nothing gets logged in the console

Just tried it myself using less restrictive listeners, None of the ChangeEntityPotionEffectEvent are firing. Report it in at

or API

I reported it.