I have experienced the curdling before and yes, it's super disappointing!! I've read that it can be a bad can-not bad, like rotten, just not as high fat or lower in quality for some reason. I get my coconut milk at Costco now, can't remember the name, but it's a red and black can and I've had more consistent results with it. Sometimes I even blend in a bit of tapioca starch to help with the fluffiness. I make a similar breakfast pudding and it's not only delicious, but the chia seeds are a nutrional powerhouse! Good for you & great post!