Will backlogs affect the admissions in MS in the US? 

Backlogs can potentially affect admissions for MS programs in the US, as universities typically consider a variety of factors when evaluating applicants, including their academic performance and the strength of their application materials.

A backlog in a student's undergraduate coursework or other academic requirements could be seen as a red flag by admissions committees, as it suggests that the student may struggle to keep up with the rigourous demands of a graduate-level program. However, the impact of a backlog on admissions decisions will depend on a variety of factors, such as the specific circumstances of the student's situation, the competitiveness of the applicant pool, and the policies of the individual universities to which the student is applying.

That being said, having a backlog is not necessarily an automatic disqualifier for admission to MS programs in the US. Many universities take a holistic approach to evaluating applicants, and may consider factors such as relevant work experience, research experience, and other achievements in addition to academic performance. Ultimately, the best way for a student to maximise their chances of admission is to present a strong, well-rounded application that showcases their strengths and achievements.

For more details, check out: Can backlogs affect your Canada study abroad plans?