Intermittent operation -- lack of Quality Control??

The rope light arrived with one 3ft segment operating intermittently -- it would go on/off seemingly unpredictably. I finally narrowed it down to one small section. If I put a 180 degree bend in the rope and use a twist tie to hold it in place, it works. This is OK in my application, and too much trouble would be required to replace the rope, so I'll keep it. Looks like poor quality control.

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