As shitty as it is it's just capitalism. Clients want something fixed while paying as little as possible. Meanwhile the stack of things that can go wrong grows

As shitty as it is it's just capitalism. Clients want something fixed while paying as little as possible. Meanwhile the stack of things that can go wrong grows to hardware malfuctions, firmware, os and app bugs plus issues that arise from between the chair and the monitor. Finding the root cause, not always, but often enough takes time and time is money. Often not even the client cares about the root cause and less so if that means you are billing him all the hours.