UUM-146870
Fixed in 6000.5.7f1Mentioned in 10 release notes.
First fixed in 6000.5.7f1 (Aug 5, 2026); relisted in 7 later releases.
| Version | Section | Risk | Impact | Note |
|---|---|---|---|---|
| 6000.6.0b9 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.3.22f1 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.6.0b8 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.7.0a4 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.7.0a4 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.6.0b7 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.6.0b7 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.5.7f1 | Fixes Multiplayer | Fix | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. | |
| 6000.6.0b6 | Known Issues Multiplayer | Caution | Known issue | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. (UUM-146870) Fixed in 6000.6.0b7. |
| 6000.7.0a3 | Known Issues Multiplayer | Caution | Known issue | Editor window layouts loads a broken "Failed to load" Multiplayer Play Mode window and throws a NullReferenceException when docking around it in projects where Multiplayer Play Mode is not enabled or its package is not installed. (UUM-146870) Fixed in 6000.7.0a4. |