This is the 15755th most frequent Russian word.
проблемным
"Problematic."
The word "проблемным" is used as an adjective describing the noun "вопрос" (question), conveying that the issue is causing difficulties.
Этот вопрос оказался проблемным для команды.
This question proved to be problematic for the team.
Here, "проблемные" describes "точки" (areas), meaning aspects of the project that may cause issues.
Он всегда ищет проблемные точки в проекте.
He always looks for problematic areas in the project.
"Проблемные" qualifies "ситуации" (situations), indicating events or conditions that involve problems.