I've created a notebook and shared with some of my colleagues which they can view and edit. But soon i noticed that whatever they added are not showing up on my mac OneNote and also i can't add additional wording on the page that i've created and shared to them. Only able to edit what i had written before. I had synced it many times and it's does showing the notebook is being synced but no update was shown.
I work around and found out, if i open the OneNote notebook using browser (Chrome - from the sharing link) then everything is there, all the update or additional info added by my colleagues are there and i can also edit and add new wording.
Btw i was told by my colleagues that she also is using the browser OneNote to edit the page as her Windows ver OneNote also can't edit it.