Bad Value In CFL(Choose From List)

Hello

I have a matrix with 5 columns and a CFL in each one.

When i choose a value from the CFL and i try to set it in the matrix, i obtain an exception saying "bad value" , but the strange thing is that I get this exception just in the first line of the matrix but in the other lines, i don't have this error.

Best Regards

Med BENNANI