cap gap

[KK201]

I'm currently on OPT status with employer A . My OPT status expires on July 1st 2017. I need to apply for OPT CAP-GAP because my H1-B petition got picked and under process.

But , the problem is that my H1-B got picked for different employer B and that start date for the new job is according to petition filed is OCT 1st 2017.

My question:

1. When applying for CAP-GAP I-20  at school, will school raise concern that the employer registered on OPT       I-20 is different and prove(H1-B received notice) provided for CAP-GAP I-20 has different employer            name ?

2. What should I do if they raise concern on this ?