DMX drop out

Hi

Hog iPc

I have a problem by working in the programmer and turnig the encoderwheel.
By doing this, I have DMX drop outs and the performance of the iPc slows down. It does no matter if there patched 1 or 100 fixtures. I would meen, this happens since the parameter for all fixtures are showing over the encoder. (maybe)
What could that be, what could I do?

Thanks, Marco
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