You may wait for the I-485 Receipt Notice and check the I-485 Receipt Date. I the I-485 Receipt Date was bfore April 1, then you can file I-131 again using the latest form by providing the copy of the I-485 Receipt Notice and thus, you do not need to pay the I-131 filing fee if you paid the old I-485 filing fee (i.e., $1,225 including biometrics fee).