The To-Do List not showing scheduled items

I have Office 365 with the latest updates and I am running Windows 10 Pro 17134.1. The To-Do List tells me I have nothing scheduled in the next 7 days and this is not true. I don't know if this problem is caused by the Office updates or the operating system.

Outlook feedback is no help, they just want new feature suggestions. Support is no good because I just want to report a problem, besides when I tried support I got dis-connected in the middle of a chat.

I remember it working before the insider release and no this was not a clean install. I am not talking about task but calendar appointments. Appointments I set up on this machine running Office version 1803 9126.2152 do not show up in the To-Do List. When I set up the appointment in my laptop running Office version 1805 9312.2008 they show up in the To-List on both machines.

I am going to install the Office insider version on this machine too and see what happens.

I installed Office 1805 9312.2008 on this machine and had the same problem. Then I notice that on my laptop I had checked off two calendars while on this machine I only had one checked. As soon as I checked the second calendar on this machine everything started to work as it should.

Thanks for the response.