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Won't Fix



Found in [Package]


Issue ID




The "cm" GameObject is not removed when upgrading a component to Cinemachine 3

Package: Cinemachine Classic


Reproduction steps:
1. Open the “” Project
2. Open the “SampleScene”
3. In the Hierarchy window, open the “Room” GameObject in Prefab mode
4. Select the “VirtualCamera” GameObject
5. In the Inspector window, open the Cinemachine Upgrader and upgrade the component
6. Observe the Hierarchy window

Expected result: the “cm” GameObject gets removed
Actual result: the “cm” GameObject does not get removed

Reproducible with: 3.0.1, 3.1.0 (2022.3.26f1, 2023.2.20f1, 6000.0.0b16)
Couldn’t test with: 2021.3.36f1 (Cinemachine 3 is not available)

Reproducible on: Windows 11
Not reproducible on: No other environment tested

- Not reproducible in an empty project

  1. Resolution Note:

    Several issues were raised:

    1. "cm" child objects: these are no longer present in CM3 once the full upgrade is completed. Won't change in CM2.
    2. CM3 hard to find in package manager: this is by design.
    3. Vcam Priority API has changed unnecessarily: Fixed in CM 3.1.0.
    4. Upgrading a CM2 project to CM3 can be non-intuitive: we have accurately documented the process in the CM3 upgrade guide.
    5. Inspector in a strange state: this is due to an incomplete upgrade with compile errors. The solution is to finish the upgrade by fixing the compile errors in the local scripts.

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