Jane is a seasoned portfolio manager overseeing a hedge fund that focuses on technology stocks. Despite having a robust investment strategy, she continuously finds herself gravitating towards her previous high-performing stocks, even when market conditions change, resulting in underperformance. Recently, during a quarterly review, she expressed confidence in retaining these legacy investments, citing her past success with them. Jane's behavior is a classic example of a cognitive error prevalent among investors, which leads her to misjudge current market conditions.

Which cognitive error is Jane exemplifying in this scenario?