A user reported an issue: SharePoint rich text editor toolbar is missing on list columns!
I verified that the SharePoint list columns are enabled with “Rich Text” capabilities, but still, rich text editor toolbars are missing!
Solution: Open SharePoint site in Internet Explorer 32 bit mode! Here is how: Type “Internet Explorer” in the Start menu, choose the “Internet Explorer” link as in the screen.
Here is the Rich text editor/multi-line column with rich text editing toolbar: