I do have a fresh install (few days) of HA + Companion IOS + Apple Watch and tried to have access to both Scenes or Scripts in Companion → AppleWatch → Configuration.
I did try a few things found on the forum about reset DB, Cache, Zones and ensuring Scene or Script is attached to a room.
In all cases I do see the list of rooms but no visibles items whatever the selected Room !
Any other controls to do or pre requisists for viewing Scenes or Scripts ?