"rubric grading by question" function in Speedgrader gets stuck

[yixin_wei]

Hi there, we use "rubric grading by question" function in Speedgrader when we mark the assignment. One long question has about 20 marking points. I find that I cannot save the results for that question. Every time I click "save" then the system gets stuck. However, if I only change few marking points (5 or so out of the 20), I can save the result change. Is there a limit of how many marking points we should include into each question or is it a system bug?