Starting a career has increasingly felt like a right of passage for Gen Z and Millennial workers struggling to adapt to the working week and stand out to their new bosses.

But it looks like those bosses aren’t doing much in return to help their young staffers adjust to corporate life, and it could be having major effects on their company’s output.

Research by the London School of Economics and Protiviti found that friction in the workplace was causing a worrying productivity chasm between bosses and their employees, and it was by far the worst for Gen Z and Millennial workers.

The survey of nearly 1,500 U.K. and U.S. office workers found that a quarter of employees self-reported low productivity in the workplace. More than a third of Gen Z employees reported low productivity, while 30% of Millennials described themselves as unproductive.