1. Insufficient resources and investment: the training and examination of railway supervision specialty need corresponding resources and investment, including educational institutions, teachers and training facilities. If the investment in these aspects is insufficient, it will be difficult to meet the training and examination needs of supervisors.

2. Lack of standards and norms: The complexity and professional requirements of supervision put forward high standards for the training and examination system. If there are no relevant standards and norms, the training and examination processes will be inconsistent and lack of comparability, thus affecting the promotion of professionalism.

3. Lack of unified management mechanism: The training and examination of railway supervision specialty involves many departments and institutions, and the lack of unified management mechanism may lead to scattered and fragmented training and examination. This kind of dispersion may lead to the inconsistency of training content and quality, and affect the improvement of professionalism.

4. Inadequate supervision: Lack of effective supervision and evaluation mechanism may lead to ineffective supervision and guarantee of training and examination quality. If the supervision is not in place, it will be difficult to ensure that the training and examination institutions comply with the norms and provide high-quality training and examination services.