1. In a blank course, create 2 gradebook categories, both set to Grade Type = None.
2. Assign a couple of tasks into Category 2 only, leaving Category 1 without any tasks (these tasks can be assignments or just manual grade items for a quick test).
3. View the grader report and turn editing on
All grading input boxes should be aligned correctly in their columns
The grading input boxes are all shifted one column to the left, meaning they don't correspond with their task name.
Notes and workarounds:
This seems to be caused by choosing the 'None' grade type AND not having a task allocated to the category. It can be avoided by allocating a task OR changing the grade type to anything other than none.