Reproduction steps:
1. Create a new project
2. Install Multiplayer Play Mode package (Window > Package Management > Package Manager > Unity Registry)
3. Open Play Mode Scenarios window (Window > Play Mode > Scenarios) and create a new Scenario
4. Add Local Instance to the newly created Scenario
5. Select the newly created Scenario as active Scenario
6. Click the “Idle” dropdown in the toolbar and observe
Actual result: Instance list area is blank with no explanation why, it only shows the “Instances Status” header and the “Open Status Window” button
Expected result: Main Editor and Instance are displayed in the Instances Status dropdown
Reproducible with: 2.0.0-pre.1 (6000.3.0b1 (0470b869db67)), 2.0.2 (6000.3.24f1, 6000.5.11f1), 3.0.0 (6000.6.1f1, 6000.7.0a6)
Not reproducible with: 1.6.3 (6000.0.83f1), 2.0.0-pre.1 (6000.3.0a6)
Reproduced on: Ubuntu 24.04, macOS Tahoe 26.6 (M4)
Note: FAV is in Editor versions