In that case IRCC would have waited for medical results of my Mom & Dad before the approval. My Dad's application was approved on Jan 6th 2024 and we did medical examination of both on Jan 9th 2024.Every individual is evaluated separately. If there was any concern about her medical it may take a while because IRCC medical personnel will want to review her medical and potentially ask for further testing. Does she have any medical issues or has she visited a Canadian hospital?
Wondering what could be the reason to only approved Principal applicant and keep application in progress for the dependent.