Any one else recently got a bad batch of optimum?? I love this stuff I has allways mixed up well for me and I loved it. But I ran out so I had to go to the nutrition store to buy it, I usually get it online. But I tryed to mix it, it just wouldnt mix, it all floated to the top and fell to the bottom, so I went back, told them what was up, and they only had one left, looked like the same batch number, and this shit does the same thing. I am alitte frustrated with the whole thing.