When using Moodle in a language where comma is the decimal separator (like in Portuguese), in an assignment configuration where Grade to pass has a number with a decimal part, it formats that number with a comma, as it should (for instance, 9.5 is formatted as 9,5). As we try to save the configuration parameters, it complains with the following message: You must enter a number here. If we substitute the comma with a point, it accepts the number and saves the data correctly.