So I have noticed that if I pop a smoke grenade and pick up a paint grenade right after popping smoke, the paint grenade goes off in my hand and kills me. Happens regularly but, only when I have just tossed a smoke grenade and immediately pick up a paint grenade.
If I toss the smoke grenade and wait for a count of like 2 seconds, it doesn't do it.
I have tried recreating this issue on a map alone to see if I am just holding the nade button down when I pick up the new one, but I was unable to reproduce it; it only happens in game play.