unfortunately it seems to be a bug that the wizard does not set the ID column correctly
I have created an internal ticket for the issue.
Regarding the second question, I don't quite understand it - is your Failure column polynominal? If so, that is not possible because the wizard can only work if it knows "equipment A has failed in the past" or "equipment B has not failed in the past". You can have missing values though, i.e. equipment for which you don't have a definite value.