After you file

Question regarding this, the same thing happened to me I forgot to check the box that my mom claims me as a dependent. Therefore, she now has to mail her return in , and mine has already been accepted. My question is, I claimed EITC on my return, my mom is also claiming EITC, is this going to be a issue or does it have anything to do with the dependent issue? are they related? I'm trying to see what is going to be the outcome for my return amount wise.  I have no clue what is going to change once the correction is made on my return.