@brokenclocks first thank you for asking this question- as well as thank you to all that answered. Our EFC was overstated too re rollover, but @brokenclocks I would highly suggest calling each of the schools that your student applied to because some schools allocate grants and scholarships based on your EFC.
Most will have you send a copy of your 2018 tax return (May need you to indicate rollover and initial), some want documentation of redeposit too, some require a letter stating it’s rollover and they will adjust.
I have stated “some” because I have called 6 schools this morning and they all have different requests.
At each school I contacted the Admissions dept first, they all transferred me to the correct dept in financial aid, most schools were very knowledgeable of how to correct error. One school I will call back to get a different person on the phone.