Human Problems

I was assigned an additional role recently to take charge of subcontracting transactions in Beijing. We have engaged company Nola utilizing 4 of their 2K injection machines to help easing our in house capacity shortage. Since Nola is also having similar set up as ours, or partially our competitors in that sense, we have hard time working together as partners. There are many instances where their machine has problem where they claim is our mold problem that causes their problem. In reciprocal our engineers always claim that our mold problem is a result of Nola's machine problem. So this controversy continues everyday, every moment and drags into my weekends as well, receiving SMS about complaints with one another. Sometimes I wonder who is telling me the right story and who should I listen ? Suddenly I became the judge to mediate the disputes and pass down final verdict. In the moment of reflection of these events, I thought that these kind of disputes is totally unnecessary and extremely trifle. It could be avoided totally if the person-in-charge is more careful. Put in heart and passion in their work, all matters can be resolved with ease. Why waste so much enerygy in fault finding? Actually machine and tool has no problem, they are all "dead" stuff. My final verdict is "Human Problem" !