Laid off, H1B transfer with new employer approved. Do I need a new entry stamp?

Hi All,

I was working for a Fortune 500 company A from January 2017 and my visa stamp is valid until August 2021. I was laid off in October 2020 due to a slow economy. After searching, I got 2 job offers. Company B, a desi consultancy and company C, a direct employer. Both filed transfer petitions under premium processing and both went into RFE. I started with company B with the receipt notice at client location since their start date was earlier and it was close to my location. On February 15, my petition with employer C got approved with valid I94 and extension of stay until 2023. So I quit company B and joined with company C. On March 10, I was told the petition submitted by company B was rejected.

1.I want to know if I have maintained my status or out of status in any point during this transition?
2. Once travel resumes should I travel outside the country to Canada/Mexico and get a new entry stamp/I94 arrival record to be on the safer end?
3. Will there be any problem in future stamping applications for having a work history with employer B since their petition was rejected after starting employment.

You are good. Nothing to worry.