We are using a brand new install of 2.7 installed from vanilla live. We have been having some issues with problems that we have used several times in the past. So far I have been able to fix them, but this one has me stumped.
Unfortunately it is a long problem, but I will paste the code and output below. This issue we are having is that a student is typing in a numeric answer, but WeBWorK is interpreting it as an interval.
Here is the students answer: