This is the 19322nd most frequent Korean word.
알려졌으나
"알려졌으나" means "was known, but."
Here, '알려졌으나' is used to contrast 'being known for musical talent' and 'having an introverted personality'.
그는 음악적으로 재능이 알려졌으나 성격이 내성적이었다.
He was known for his musical talent, yet his personality was introverted.
In this context, '알려졌으나' connects the acknowledgment of issue cases with the overall positive reception of the project.
이 프로젝트가 유명해졌고 문제점을 제기하는 사례가 알려졌으나 대부분 긍정적이었다.
This project became famous and cases pointing out issues were known, yet most views were positive.
Here, '알려졌으나' contrasts the distribution of rumors with the recent finding of the painting.