Perhaps this has already been reported but the flash effect from concussion grenades seems to be cancelled whenever another explosion occurs within view shortly after the flash. Curious if others have noticed this as well? Unsure if it is the explosion that causes this or the visual effects from the explosion that seems to cancel the white screen effect from the flash. In general concussion grenades have all kinds of issues and could use some love/balancing.
I play with low visual settings and all visual effects off except shadows.