My experiences are strikingly similar to Doobes. Onenote 2010 was functioning perfectly fine, until we added a new user who began syncing/using OneNote Windows 10 app. Our issues began occurring sometime near the end of March 2017, beginning of April 2017;
sorry I don't have exact date. But very similar timeframe to both Paul and Doobes.
I have no appetite spending my time and money by contacting Microsoft's Answer Desk to help solve a Microsoft issue, that has already cost me and my colleagues lost time and money on productivity.
Wouldn't it make more sense that Microsoft pay us for our time and money to help them drill down root causes, so that they can permanently solve this issue for all of their customers? I don't actually expect; but the point is that the customer shouldn't
be the one on the hook to solve what is most likely the supplier's error.
I understand that in a lot of cases, inexperienced users, combined with a plethora of user settings/hardware/software configurations make it difficult to know whether the problem is user specific, or in fact a Microsoft bug. But I think there are some key
pieces of evidence here that overwhelmingly point to this being a Microsoft bug.
A critical thing that sets relevant companies apart from their competitors is customer service, and engagement/collaboration/cooperation with paying customers. If Microsoft is concerned about what has happened with their market share, this would be a key
area to focus on making improvements. I loved the Onenote product overall before these issues started, but honestly, this experience so far has been a "turn-off", and if not resolved, I will be looking for an alternative product, from a company who places
customer focus as their number one priority.