Troubleshooting
Common issues and solutions for Embedded Mode
Solutions to common problems when using Embedded Mode.
"Prefabs are not supported"
Problem: You're trying to use Embedded Mode on a prefab.
Solution: Convert to Asset Mode instead:
Create a new State Machine asset in your Project
Design your logic in the asset
Assign the asset to the Runner on your prefab
Use Runner Variables for instance-specific data
Missing References After Scene Reload
Problem: Scene references show as "Missing" after reloading the scene.
Causes:
The referenced GameObject was deleted
The scene was reloaded without saving
The GameObject was renamed or moved
Solutions:
Reassign the reference to the correct GameObject
Use Self or Target patterns instead of direct references
Ensure the scene is saved before closing
Can't Open Embedded Graph
Problem: Unable to open the embedded graph for editing.
Solutions:
Ensure the Runner component has an embedded graph (look for "Open Graph" button)
If button shows "Create Embedded", click it to create a new embedded graph
Check if the Runner is on a prefab (not supported)
Graph Not Running
Problem: The embedded state machine doesn't execute.
Checklist:
Is the Runner component enabled?
Is the Start node connected to other nodes?
Are there any console errors?
Is the GameObject active in the scene?
Changes Not Saving
Problem: Changes to the embedded graph are lost.
Solutions:
Always save the scene after editing an embedded graph
Check that the scene isn't read-only
Ensure Unity has write permissions to the project folder
Performance Issues
Problem: Many embedded state machines causing slowdown.
Solutions:
Convert frequently-used logic to Asset Mode
Simplify complex embedded graphs
Use Sub-State Machines to share common patterns
Profile using Unity's Profiler to identify bottlenecks
Reference Became Invalid
Problem: A previously working reference stopped working.
Common Causes:
GameObject was moved to a different scene
GameObject was converted to/from a prefab
Scene was duplicated without updating references
Solution: Re-drag the correct GameObject into the property field.
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