I am having trouble with the roof edit tool. When I create a hip roof and go through the steps to change one plane to a gable, nothing happens. It was working fine on the trial version, but now that I upgraded it quit working. I am using V17.7.0 with SketchUp 2018. I went back to SketchUp 2017 and tried it, having the same issue. Any help would be much appreciated.
There are two things I would recommend to do.
1) Go to 'Extensions > PlusSpec > Reset Factory Default', select Yes for the Default Options option then click OK and try to edit the pitch again.
2) In the Edit Roof Pitch/Gable Tool dialog enter either 90 or 1:0 (depending if Pitch/Ratio or Degrees is selected in the dropdown menu) in the Pitch field.
Would you be able to please let me know if either of these fix the issue you're having?