When an assignment has been set to use a rubric and marking workflow is enabled decimal marks are not displaying before the workflow status is set to released on the individual grading pages (the one with a url like this /mod/assign/view.php?id=1064&rownum=0&action=grader&userid=4#). Decimals do display on the 'View all submission' page before and after release.

For example a student can be graded with a rubric that gives a grade of 6.67/10. While that is what displays on the 'View all submission' page, in the individual grade page, where the marker does the grading it displays as 6/10 before release.

I've confirmed this in our 3.9.6 moodle and on the QA moodle that is currently running 3.11 dev.

To replicate

Create an assignment

• Create an assignment with:
  • Maximum grade = 10
  • Grading method = Rubric
  • Use marking workflow = Yes
• Using Advanced grading create and attach a rubric.
• For simplicity have one criterion with four levels; 0, 1, 2, 3 points
• The goal is to be able to give a grade with a decimal

Grade using rubric

• Enrol at least one student in the course
• Go to the 'View all submissions' page
• Click the Grade button for the student. The student does not need to submit for this test.
• Using the rubric click the '2 points' option
• Click 'Save changes'
• Expected: Current grade in assignment = 6.67 / 10
• Actual result: Current grade in assignment = 6 / 10

'View all submissions' page 

• Check grade on 'View all submissions' page.
• Grade on this page is 6.67 / 10

Release grade to student

• Go back to the student grade page and change workflow to 'Released'
• Click 'Save changes'
• Grade on this page now displays 'Current grade in gradebook' = 6.67