I had the exact same problem with my NO-Xplode in a shaker. However, it was not the Blue Rasberry flavor, it was Fruit Punch.
I have used my shaker bottle to mix NO-Xplode a few times and have only noticed this when adding 3 scoops.
I have only had this problem once, as I have opted to use a spoon for everything else I mix.

That stuff made such a mess!