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Third Party Issue
Third Party Issue in 6000.6.X
Votes
0
Found in
6000.4.0b9
6000.5.0a8
6000.6.0a1
Issue ID
UUM-138153
Regression
Yes
"Object of type 'System.UInt64' cannot be converted to type 'System.Int32'" error when dragging a GameObject from the Hierarchy window
Steps to reproduce:
1. Open the “IN-137905” project
2. Open any scene in the project
3. Select and drag any GameObject from the Hierarchy window
4. Observe the Console window
Actual result: "Object of type 'System.UInt64' cannot be converted to type 'System.Int32'" error is logged
Expected result: No errors in the Console
Reproducible with: 6000.4.0a5, 6000.4.1f1, 6000.5.0a8, 6000.6.0a1
Not reproducible with: 6000.0.71f1, 6000.3.12f1, 6000.4.0a4
Testing environment: Windows 11 Pro, macOS 26.3.1 (M1 Max) (by user)
Not reproducible on: No other environment tested
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Resolution Note:
Thank you for reporting a bug to Unity.
Our investigation indicates the issue originates from a third-party asset, plugin, or service, rather than Unity itself. Because the problem lies outside our codebase, we're unable to address it directly. Please see these posts for more information:
https://discussions.unity.com/t/hierarchy-is-completely-broken/1713649
https://discussions.unity.com/t/cant-drag-and-drop-anything-in-the-hierarchy-in-unity-6-4
We will close this case as a third-party issue. We recommend contacting the vendor or maintainer for support. If you have evidence that the issue is within Unity, please share it and we will re-open the investigation.
Resolution Note (6000.6.X):
Thank you for reporting a bug to Unity.
Our investigation indicates the issue originates from a third-party asset, plugin, or service, rather than Unity itself. Because the problem lies outside our codebase, we're unable to address it directly. Please see these posts for more information:
https://discussions.unity.com/t/hierarchy-is-completely-broken/1713649
https://discussions.unity.com/t/cant-drag-and-drop-anything-in-the-hierarchy-in-unity-6-4
We will close this case as a third-party issue. We recommend contacting the vendor or maintainer for support. If you have evidence that the issue is within Unity, please share it and we will re-open the investigation.