Collecting Approval thanks to Flexi Task

Hi everyone,

I created an approval workflow with the Flexi Task, you can only choose 2 answers (yes or no).
No matter what kind of behaviour I try i always end up with the error “Answer not required” when there ara more than 2 people involved in the process.

Does anyone have ever encounter this issue ?
Is there a way to do the same thing with another function ?

Thank you in advance for your help