Google drive pdf reader comments not showing on adobe

I saved a PDF file from my Lenovo tablet onto a shared google drive folder. My friend opened this file with the google drive pdf viewer, on her laptop, and made comments. I opened the file with the adobe acrobat reader mobile app and could see these comments. However she made more comments on this file using the google drive pdf viewer, and these new comments are not showing up when I open the file on the adobe pdf reader app. The original comments she made are still showing. When I open the file on the google drive pdf viewer, I can see the original and new comments. She has closed the pdf file on google drive on her laptop. I am having the same issue on my android phone as well. Please assist!