When an Apple Home scene misses one accessory, test that accessory by itself before replacing it or rebuilding the scene.
Set up a controlled test
Run the scene manually in Home and record which accessories respond. Then control only the missed accessory from its own tile. If it fails on its own, resolve that individual control problem before editing the scene. If it responds alone, inspect the accessory’s inclusion and the state stored in the scene.
Read the result
Set the accessory to a visibly different starting state and run the scene again. This avoids counting a lamp that was already on as a successful command. Keep a note of the original scene settings before changing anything.
Worked example
If a lamp works from its tile but stays bright during a reading scene, verify that the scene saves your intended brightness for that lamp. If the tile also fails, the scene is not yet the right place to troubleshoot.
Documentation and next step
See the manufacturer’s instructions for requirements and settings. For a related decision, see ikea somrig shortcut scene vs bulb control.
