My employer missed to file the LCA on time and we found it out after 4 months and filed an LCA. got it approved and got my H1B amendment approved as well. I am now in India and went for visa stamping and got 221g blue slip. Client letter verification is happening now( Client informed they received a mail from USCIS) and I am wondering what if client provides my project start date which is 4 months earlier than the approved LCA. what kind of issues I might run into?