Hi @Rebelrona,
According to my records from when I reported this to Canvas Support, this specific problem (the ability to select and de-select the "I'll write free-form comments when assessing students" setting when either creating or editing/updating a rubric) has been working since Friday, May 9th at about 3:50 PM ET.
I just:
- created a sample assignment
- added a new rubric to the assignment with the "I'll write free-form comments when assessing students" setting not selected
- I editted the rubric and I was able to select the ""I'll write free-form comments when assessing students" setting
If you are not able to do that, I would recommend that you either (a) if available to you, report it directly to Canvas Support or (b) contact your institution's Canvas team so that they can report it directly to Canvas Support.
-Doug