H1B Transfer when current H1B is expired and extension has got an RFE

[thxinadvance]

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[jagtap]

Current H1b if H1b transfer is denied

I'm currently on H1b with company A. If I join a new company (company B) & if my h1 transfer by this new company is denied by USCIS, will my company A's H1b will still be valid? I mean if new H1b transfer is denied, can I still continue working for company A? or will there be any issues with my existing H1b with company A. Thanks in advance!