In the following image, we have questions 1312 (multichoice question) and 1313 (checkbox). I have built a condition to show question 1314 only if 1312 is Sim or 1313 has not selected NAO SEI, but it is not working.
But another issue has risen regarding another question:
I want to show question 104A if options Primário (Ep1) or primário (Ep2) or
Ensino secundário (1ºCiclo) or Ensino secundário (2º Ciclo) is selected in 104. The expression in the image below does not work
My guess is that there might be some type coercion going on which is (or isn't) turning options from strings to numbers. You have leading '0's on the choice strings ('04' instead of '4'), and it's possible the input is (explicitly or implicitly) being represented as a number.
If the leading '0' isn't important to your internal logic, my suggestion would be to make comparisons to numeric outputs with no quotes (IE: #form/Q104 = 4, rather than #form/Q104 = '04') since I think that will be the most robust / resilient against other type changes.