Originally Posted by longride
At what gait did she say your horse was pacing? It's very hard to spot a walk that has become "pacey" if you haven't been taught how. In your video, count to yourself the footfalls at the walk and notice the rhythm. If it's an evenly spaced 1234 it's a pure walk, but if there is any sense or 12 34 in it the walk is not pure and is moving towards a pace. It is a very common fault and one many riders aren't aware of.
^ I very much agree with this. A pacey walk is something that, to me, many riders/coaches seem to have a hard time seeing and/or fixing. It never ceases to amaze me how many FEI horses (and many "lower" level horses) I have seen pace at the walk. Though it can be easy to get a little busy at the walk and cause jigging or a lateral walk.
Don't be discouraged OP! Many a times I've had beautiful rides on my pony only to get disappointing scores. It happens, remember it is only one person's opinion, though do try to take what good you can from the test and learn from it
(sometimes easier said than done...). I remember a show where I had over a 10% difference between two tests (both at second level) on same horse from two different judges. One gave me mid 60's and the other gave me low 50's. I just decided he was crazy