Originally Posted by existentialpony
The big question for me is whether or not your horse picks up the correct lead on a lunge line?
What would it indicate if the horse only picked up the left lead in the round pen, too?
I had this exact same problem, same lead and everything. My mare would pick up the wrong lead in the round pen and the would eventually do a flying change.
After a tack change I can now get her to pick it up under saddle, but most days it takes 4-5 tries before she gets it.