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As long as your employer does not notify INS that it has laid you off, you probably will be fine. However, if for some reason INS suspects that you no longer work for your sponsoring employer, it will issue RFE.
Now, it\'s not likely that VSC will adjudicate your case in 180 days after your filing. As long as your application has been pending for more than 180 days and you work for another employer in the same field, you will have no problem.
If you want to delay the processing, you can reschedule FP. That would work.