Task preview no longer shows in to do bar

[kimbera68]

Up until today if I hovered over an item in the to do bar, a preview would pop up showing relevant information (title, due date, status). After I set up some custom views to print reports, I can no longer see the previews. I have to open the item to see all the details. There also used to be an option at the top of the to do bar to change the sort order (Arrange by: ) This is gone also. I thought I could fix it by "Reset Current View", but it's greyed out. The arrange by option isn't that important but the hover preview is. Does anyone know how I can get it back? I'm using Windows 10 and Office 365 ProPlus.