Cannot get "MobHunting Reward" heads to pass through hoppers, despite config edits.

[Schmitin]

Changing "deny_hoppers_to_pickup_rewards:" did not allow "MobHunting Reward" heads to pass through hoppers. Setting details indicate that having it set to true allows them to pass through hoppers, though that seems to not be the case either way.

Fairly stumped with this. As BagOfGold has a specific setting for allowing/disallowing rewards to be passed through hoppers, it would only make sense for that to be the solution, though changing it did not have any affect on the heads.

[Momshroom]

I have this same issue, No matter which way I set this setting, mob hunting heads will not flow out of hoppers.
MobHunting 7.5.7
Paper 249, 1.16.3