It's just a different strain that grows differently - no worries. It will most likely always be different from your other strains and that's ok... As you take care of your grow, keep careful records of what you do for each plant and note how they are reacting... you may find that this particular strain is going to react differently and you will have to make some adjustments to their nutes or schedule or...
They aren't cookie-cutter plants - relax and let them do their thing!
Good luck!