Error while making a surface in an EnergyPlus zone

[Former user]

Making a line won't give any error, but when the lines create a surface an error occurs:

ERROR:
NoMethodError
undefined method `group_entity' for nil:NilClass

BACKTRACE:
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/DrawingInterface.rb:401:in `group_entity'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/BaseSurface.rb:254:in `face_polygon'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/Surface.rb:106:in `update_input_object'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/BaseSurface.rb:92:in `update_input_object'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/DrawingInterface.rb:219:in `create_from_entity'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/interfaces/DrawingInterface.rb:206:in `new_from_entity'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/observers/SurfaceGroupEntitiesObserver.rb:50:in `block in onElementAdded'
C:/Users/s154965/AppData/Roaming/SketchUp/SketchUp 2017/SketchUp/Plugins/euclid/lib/legacy_openstudio/lib/AsynchProc.rb:14:in `block in initialize'
SketchUp:1:in `call'

CONFIGURATION:
Euclid 0.9.3
SketchUp 17.2.2555 64-bit Pro
Ruby 2.2.4 x64-mingw32

[Peter Ellis]

It appears from the screenshot that both OpenStudio and Euclid are running at the same time? Normally Euclid refuses to load if OpenStudio is enabled, so I'm not sure how it got in this state (could be a separate bug?). OpenStudio and Euclid will NOT play well together. I suspect this is the cause of the error.