The phrase "a problematic system that" is correct and usable in written English.
You can use it when discussing issues or challenges related to a particular system, often in a critical context.
Example: "The report highlighted a problematic system that hindered the efficiency of the entire organization."
Alternatives: "a flawed system that" or "a challenging system that".
The site, which is currently in private beta, has created a useful (and potentially problematic) system that allows bloggers to sift through recent television broadcasts and extract their own clips.
More importantly, it has shone a torch on the problematic system that decides what is culturally acceptable in a wannabe modern, post-ceasefire Northern Ireland.
This alone isn't problematic, but when coupled with a system that doesn't recognize or report failures (as many election systems are set up), it can lead to an election with potentially flawed results.
But the second — and perhaps the more problematic move — is that you took advantage of a system that was consciously created to make your life slightly easier.
They argue that it is loaded with loopholes and upends a system that is already working, replacing it with one that is problematic at best.
Case studies of the control of humic matter, elemental sulfur and colloidal silicate in problematic RO systems that became stabilized are briefly presented.
These procedures are often adapted to bypass or avoid a problematic feature of the system that jeopardises people's chance of completing their work safely within optimal timeframes and resources.
Iraq's recovery from 13 years of sanctions and two wars is more problematic, but the cold-chain system that had been destroyed has been reinstalled; coverage in 2003 was at 90 per cent against measles.
But the fact that the implementation of a program capable of providing individualized consideration might present administrative challenges does not render constitutional an otherwise problematic system.
