I was having this problem and it was frustrating, to say the least. I found that the problem with the My K-Cup leaking and producing a short cup of coffee was the brand of coffee that I bought. On two different occasions, I bought a store-brand coffee and Folgers Custom Roast and had the problem. When I went out and bought Maxwell House Master Blend, the problem was alleviated. It must have something to do with the fineness of the grind. I'm sure there are other brands out there that would give good results, but my experience is, so far, with the Maxwell House Coffee. Also, if I fill the filter to the very top, I would have the problem, so I now fill the filter to 1/4" from the top. It took me awhile to figure it out but I no longer have the problem