While user-centered design (UCD) processes have widely been established in domains like end-user electronics and business-toconsumer products, such processes still lack widespread adaptation for the development of industrial human-machine interfaces (HMIs). Over a period of more than two years, we have worked as part of a development team at a company from the manufacturing domain in a pilot project to introduce a UCD process. During this period, we have - via participant observation - collected a set of observed anti-patterns for the adaptation of UCD principles as well as possible mitigation strategies. The introduction of a UCD processes cannot be performed isolated for a single development team but has an impact on the entire organization including management and requires trust as well as changes with regard to mindset, methods, technologies, and team organization.