I decided to go ahead and call in to Meade Customer Support and let them know about the problem you have encountered.
Frank, the person that answers the phone, said that he had not heard of that particular problem before, but thought doing a reset back to default settings would be a good thing to try.
He suggested that you call in he would pass along information about the problem, etc. I told him I think you do not live in the U.S. and would not be able to use the toll free number, which is why I called in to let them know about it. He was appreciative of the information. I believe they will be attentive to the situation if a reset to default settings does not stop that particular problem.
I do think training the drives and all those good things would be the right thing to do if you do the default reset.
I cannot think of anything physical that could cause that particular problem without showing up with other speeds, directions, etc. However, I could be wrong.
Please let us know how things go.