Conversation so far:
How was Marian Anderson perceived in Europe?
In 1933, Marian Anderson made her European debut in a concert at Wigmore Hall in London, where she was received enthusiastically.
Did Marian Anderson remain in Europe after her 1933 debut?
In 1934, impresario Sol Hurok offered Marian Anderson a better contract. He became her manager and through his persuasion she came back to perform in America.

Question: Were there ever any conflicts?
Self-contained rewrite: Were there ever any conflicts that Marian Anderson faced?