Yeah, I am having the same issue on the PS4.
I checked, double checked, and re-checked to make sure that my playstation network gamertag, e-mail, and origins account all match up. They absolutely do, no doubt about it. I looked up the tutorials they've posted, just to make sure. Everything is connected how it should be.
However, while it says on the Dragon Age Keep that my world state is succesfully being imported, upon attempting to start a new game and import my custom world state from the Dragon Age keep, it takes forever to load, and then I get this message: "No custom world state found. Using default world state."
I figured that I must have messed up somewhere, but that doesn't appear to be the case. After all of my double checking, I cannot think of a single possible mistake I could have made.
Update: After all of my repeated attempts and coming here to find answers, I just decided to shut everything down completely and then start it back up again. And it worked. I'm still not sure where the issue originated, to be honest, but it is what it is. Maybe logging out, shutting everything down completely and then logging back in will help you too? Fingers crossed that the issue clears up for you soon.