Hello there,
i have same issue here. I forgot to upload my son upfront medical during my application.
then i received may file no. January 04,2024
I received medical request for my son from Visa officer Jan. 11,2024 . So decided to let my son do a remedical but the accredited hospital in my country says that my son medical was still valid and active. So i contacted the IRcc I even send his upfront thru webform Jan. 15. Till march 23 no update so I call the IRcc again and advice to send explanation letter and attached again the upfront medical till today no update despite of sending it twice thru webform.