My H1B extension was applied by Employer A in September 2020. Employer A also applied for H4 extensions for my wife and son. I got my H1 approved in December 2020. My family’s H4 is still in process. I changed from Employer A to Employer B in April 2021. My family’s H4 is still in process. Do I simply need to wait for their H4 to be approved or should I re-apply their H4 with Employer B now? My wife’s H4 has expired and she is currently here based on the H4 receipt notice.