Answered FPD and multisep product configuration Y Yeray Navarro Suarez started a topic over 8 years ago Attributes are not saving option FDP with multistep product configuration
You will need to update MSPC to version 1.0.7 for it to work properly with FPD 3.0.3. If you are on version 2.2.4 of FPD, use version 1.0.6 of MSPC.