Record of employment

I have a unique situation that I need help with. Our daughter works in our company, was diagnosed with a brain tumor last year and being her parents, even though I do the bookkeeping, I missed filing an ROE for the time she was off (January-July 2022) because of our focus mainly being on her health and not on her employment until now. She has started improving significantly since July 2022, putting in a few hours here and there. What I need help with is Box 12. According to Service Canada, I can back date an ROE, but QB is preventing me from changing the date of Box 12 to January 9 2022 because she began working again in July and it now shows her last pay date as December 2022. I may get penalized for filing late unless I provide an explanation, and she may claim EI but needs this ROE completed first.