A few thoughts...
1: Whats the humidity in your area?
2: How long did you let it dry before posting this picture ? If it's sprayed on slightly thicker than normal it may need more drying time.
3: How long did you shake the can? It looks like it's not mixed quite right.
I believe it's not mixed. You may want to spray a light coat of glosscote to take care of the "fogging" effect then once thats dry hit it with the dullcote again.
I have had this happen to me and thats how I fixed it.... However I dont want you to ruin your paint job just because you listened to me sooo... please wait for a few more members to chime in before you try this.