Hi Josiane,
At this point it would be much easier for me to help you if you could share your project’s demonstration link (Share > Copy Demonstration Link, in the right menu of your project’s page)
I am not sure what your table looks like, but I have created a variant of the project I shared above, this time with a base of 18 items and using your code (just slightly edited). You can directly test both groups here:
- Group A: https://farm.pcibex.net/r/CHtOnZ/server.py?withsquare=0
- Group B: https://farm.pcibex.net/r/CHtOnZ/server.py?withsquare=1
There is one fatal error in your case-0 code: you reference an array named conditions where it should be conditions_families (on the line where you set families)
Let me know whether you were able to fix the situation
Jeremy