Hi Kenomica,
Would you mind sharing a screenshot of your event graph for how you’ve setup the DM to receive the damage and a screen shot of your DM settings from the DM editor?
Possibly depending on how the damage is being applied can possibly still generate the damage to happen with the damage radius. This may appear to be a result of the impact damage but in fact is done by the damage radius when when the character capsule bumps into it.