Double check that the active instance and profile are set before updating disallowed
Double check that the active instance and profile are set before updating disallowed

Contributes to CURA-138

markwal/Cura,Curahelper/Cura,hmflash/Cura,ynotstartups/Wanhao,senttech/Cura,fieldOfView/Cura,markwal/Cura,totalretribution/Cura,ynotstartups/Wanhao,senttech/Cura,Curahelper/Cura,fieldOfView/Cura,hmflash/Cura,totalretribution/Cura