Operating system: Windows 64
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28, as found on the splash screen)
With Left Click Select enabled, right click required to place cursor on timeline. Does not make sense and not consistent with other software. I realize that left click is now selecting key frames but clicking should place the current frame indicator and clicking and dragging should scrub the timeline.