FWIW (For What It's Worth), you can put late oil over latex, so you're OK there. The usual cause of your problem is moisture based on my experience. Other than that, I'll have to say that your 'designer paint' is bad. If you search this Forum's BBS, you'll see LOTS of people that had problems with this type of paint. Again, from my perspective, I don't see even the BEST of painters have the best of success with these types of paints. It's all in the mix. In short, you get what you pay for (and that's in the Name; NOT the material.)
In my opinion, open your Yellow Pages, look under PAINT - RETAIL and pick a store like Benjamine Moore, Pratt & Lambert, MAB, Finneran & Haley (my personal favorite), and have them mix something up for you. Heck, bring in a sample to see if they can match it.