The new shiny is awesome, but I noticed it doesn't work all the time.
I.E., you see it working for some slasher missiles, but not all:
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Those two shots are from the same paused moment, so some flickering on/off can happen with the projectiles even as the game is paused.
Hardware/Drivers:
Nvidia GTX 560 Ti
361.28
Kubuntu 15.10 64-bit
Asking other people to check to find out if this is a problem unique to me.