Situation:
I have stamped visa valid till Dec 2016 from my previous employer (Let’s say Employer 1) on my passport.I changed my job to the new employer (Employer 2) but didn’t leave the United States.I again changed my job to the new employer (Employer 3) & have the H1B approved petition & H1B amendment receipt. Also the stamped visa from previous employer is valid till Dec 2016.Question :Can I travel to & fro from Europe without any issues?