Hi, I was an intern for 6.5 months with a company while pursuing my undergraduate degree. The company offered me permanent employment, which I did not accept due to personal reasons. Although the company provided me with an internship certificate, the management also mentioned they might give negative feedback. I have now received a full-time job offer from a different industry and have not included this internship experience on my resume. Will this omission cause any issues during the background verification process?