Hallo Aline,
In your set variable block, the value is a text string datatype by default (“3”, not 3). This often causes problems because if you use a change block the datatype is a number (0, not “0”).
The solution is to drag a number value block into the value field of your Richtig variable:
Now the conditional statement can be calculated correctly.
Hope that helps! Let me know if you have any further questions.
Geoff @ TechLeap