Hey to those experiencing particle problems for their boosters, I found out that the problem is coming from the FX folder from with in the TextureReplacer folder. The directory should be GameData/TextureReplacer/Default/Squad. You should find two folders in the Squad folder. One FX and the other parts. In order to get rid of the problem I just deleted the FX folder. I don't know how deleting the folder will affect the game but so far I haven't run into any more problems. Just make sure you backup your game if your gonna try this fix.