
does anyone know any mods that cause this issue?
the mods i've tried to see if they caused it is
Vanila Hud+
Sdych UI
Rino Hud
practically any mod that effects the in-game hud

I was also having this problem... Figured out that pd3 custom fov and armor color mods edit the same file and conflict. Also on the armor color mods they have set the wrong lagging color causing the red flashing trauma to not be seen.
My solution was to merge the mods together so i could have the features of both and then set the lagging color on armor types to what it is in base game.
LaggingColor=(R=0.692710,G=0.023788,B=0.023788,A=1.000000)

@moonistic If you unpack custom fov and open it up, scroll to the bottom and you'll see armor settings from there you can copy paste your armor color mods stuff. then repak it and you'll have custom fov with working armor colors...
I was also having this problem... Figured out that pd3 custom fov and armor color mods edit the same file and conflict. Also on the armor color mods they have set the wrong lagging color causing the red flashing trauma to not be seen.
My solution was to merge the mods together so i could have the features of both and then set the lagging color on armor types to what it is in base game.
LaggingColor=(R=0.692710,G=0.023788,B=0.023788,A=1.000000)