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:

  1. Create a new State Machine asset in your Project

  2. Design your logic in the asset

  3. Assign the asset to the Runner on your prefab

  4. 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:

  1. Is the Runner component enabled?

  2. Is the Start node connected to other nodes?

  3. Are there any console errors?

  4. 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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