H1b Stamping

Hi,

I have two approved Petitions from Employee A and Employee B and working with Employee A. in between I had my H1 B stamping with Employee B petition. Now employee A ask me to go stamping once again.

what are the possibility getting seconding stamping,

If I get the second stamping what will happen to Employee B petition status?

Please, clarify my doubts.

Regards,

JK.