Beginning with 3.1, if you go to a Quiz > Results > Quiz statistics and choose to download the results in an HTML format, the output is less detailed than it was in prior versions.
Here is the same quiz output from version 3.04 compared to the output from 3.1.3.
In the screenshot, you will notice that 3.0x/prior has more details and information in the output. Whereas beginning wtih 3.1.x the output is not as detailed.
Most helpful in the previous output is the question text being paired with the question answer statistics. That seems to be no longer the case.
This is an improvement request to include more details in the new output version.