Hello Kelrugem,
Thank you for the update. Testing it out I'm seeing the damage overlays are only applied to PCs, not NPCs.
<see video>
https://youtu.be/hXBedDbm0K0
In the video, the first 3 were player characters; damage indicated as expected.
The next several, both 'friendly, neutral, hostile' did not show any overlay. The damage registers in the combat tracker, but the health bar does not change from the full green.
It doesn't matter if the attacker is an NPC or PC.
It doesn't matter if the damage is dragged and dropped onto the CT or the map token, or if the damage is double clicked on a token already targeted.
Spell or Melee damage makes no difference.
I updated FGU,
I tested with only "Advanced Effects and Strain and Injury" installed, downloaded today.
Thank you for all the hard work you put into maintaining these amazing extensions! Let me know if you need any more information or help testing.
Rob