The timeline does not work after the October 2018 update  

Hello! :) after the October 2018 update, the timeline does not work. I only have record of activities from days before the update.
Is this a bug from Microsoft?
Thanks.

I don't think there is a bug. Today when I checked, I have a months worth of timeline data going back to 8 Sept. Do you sign in with a Microsoft account?

Yes, I sign in with a microsoft account

Give it another day and see if the history populates. If not, report it in Feedback to MS.