What kind of problem can be encountered when requesting references from previous employers of job applicants?

When requesting references from previous employers, a common problem is the potential for biased or limited feedback, as employers may be hesitant to provide negative information due to legal concerns or company policies. Additionally, some companies may have strict policies that only allow them to confirm employment dates and job titles, leading to inadequate insights into the applicant's skills and performance. This can hinder the hiring process, making it difficult to assess a candidate's true qualifications and fit for the role.