H1B travel during travel ban with change in employer but have valid visa from prior employer

If my H1B visa is stamped till October 2021 from prior employer and now i changed my employer . So can i travel to USA on my stamped visa from old employer. It’s during
Or if i don’t mention my new employer at POE. Can i travel to usa ?
As this may cause I94 mismatch then do i need to travel again to get it fixed ?