Index was outside the bounds of the array

Hello,

I'm using old Fibaro Z-Wave modules. They are included into the Z-Wave controller without any issues, but the parameters are not populated automatically. So, I have to add them manually. 

Sometimes, this is working fine ; some other times, I'm getting the "Index was outside the bounds of the array" message when I'm trying to set a parameter. (Reading parameters work fine.)

Example with a Fibaro FGS221 for which I added parameter 14 only (switch type) ; I can't modify this parameter, which is quite a problem as it means that I cannot control correctly the relay with the switch.

Thank you for your help,

François