Cannot create new scene / synch for Siri

When I created a scene called nightlight and synched it with Siri voice and then deleted it and created another scene called nightlight and tried to sync it I get the error that it already exists and I have to choose a new name and cannot use Nightlight again and cannot get Siri to forget the old Nightlight scene.

ChrisH3748462848910 about Philips Hue gen 1, v1.12.2