Tools Menu not Loading on Blender startup #66776

System Information
Operating system: OSX 10.14.5
Graphics card: AMD FirePro D500 3 GB

Blender Version
Broken: 2.80 Release Candidate
Worked: (optional)

Short description of error
When starting up blender the tools and the side bar are not displaying. Pressing key shortcuts of "T" or "N" do not display either sidebars; in addition, the Info window displays the following:

Traceback (most recent call last):

File "/Applications/Blender.app/Contents/Resources/2.80/scripts/startup/bl_ui/space_toolsystem_common.py", line 611, in draw
  self.draw_cls(self.layout, context)
File "/Applications/Blender.app/Contents/Resources/2.80/scripts/startup/bl_ui/space_toolsystem_common.py", line 599, in draw_cls
  ).name = item.idname

AttributeError: 'NoneType' object has no attribute 'name'

location: :-1

Exact steps for others to reproduce the error
Based on the default startup

Added subscriber: @UpStand

Added subscriber: @TobyWilson

Same here, also only the beauty image of the startup screen is visible.

Closed as duplicate of #66754

Added subscriber: @herlop

Same here. macOS 10.14.2

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Tools Menu not Loading on Blender startup #66776