The phrase "and problematic to maintain" is correct and usable in written English.
It can be used when discussing issues or challenges related to the upkeep or sustainability of a system, process, or situation.
Example: "The current infrastructure is outdated and problematic to maintain, leading to frequent breakdowns."
Alternatives: "and difficult to sustain" or "and challenging to uphold".
Proponents of the epistemic argument respond that it is problematic to maintain both that the qualitative nature of experience can be genuinely novel, and that the quality itself be the same as some property already grasped scientifically: does not the experience's phenomenal nature, which the demonstrative concepts capture, constitute a property in its own right?
The genre switch proved problematic to maintaining the team aspect of gameplay.
In reality, our relationships with capitalism are all complicated and problematic to varying degrees.
For many of the corporation's cultural arbiters it is an institution at best problematic (trying to maintain freshness in the face of unbending "tradition") and at worst an embarrassing spectacle they would privately prefer to do away with (vulgar audience displays of jingoism and boorishness).
However, Old World and hominoid primates are long-lived and costly to maintain, making the use of these primates in longitudinal research problematic from both scientific and financial perspectives.
Direct measurements of Tat affinity are problematic, however, because Tat is unstable in vitro in the absence of partners and difficult to maintain in an active form.
The future of Ariane 5 and how to maintain its competitiveness in the face of growing international competition was the most problematic topic going into the Ministerial Council.
Affordable and easy to maintain?
Be trustworthy and able to maintain confidentiality.
Positioning of the MASTER and SLAVE heads of the dual inclinometer may be problematic, including the ability to maintain a constant pressure with the heads against the skin.
