Attacks producing only 0s

Sometimes when we click on a weapon to attack with it to produce a roll, the result is always zero.

I was able to figure out the issue. The specialization value sometimes just does not populate, which makes the formula #+#+#+#++((0-(0+0)+0)+0+0) instead of what it should be #+#+#+#+#+((0-(0+0)+0)+0+0). Checking/unchecking the specialization box fixes the issue.