I checked for a bit and the issue @Karo-Bube Seems to be with the Player Health Stat itself rather than the attribute evaluator Device.
For the test I selected the Player Health Value to be shown on the scoreboard so I could check the value the Attribute Evaluator Receives/Compares, and noticed that Healing Actions just didn’t update the “Player Health” stat. However whenever damage is dealt even if it doesn’t decrease health (eg Only Decreases Shield) the stat value will update to the correct value.
As you can see in the video, I used a grenade to damage my shield and when I did that the Player Health Value updated to 100.
Additionally here’s the project I used in the video.
PlayerHealthStatBugProject.zip (81.1 KB)