Possible reasons for rejection of a selected Petition in lottery

Hi, I got an update from my employer that My petition is selected in lottery.

While I’m checking the USCIS case details, it was mentioned as below.

Next step-

If we accept your case, you will receive a receipt notice. If we reject your case, we will send you an explanation with instructions.

So, I just want to know, would be the factor that the case might get rejected at this stage?