Steps to reproduce:
1. Create new Unity project
2. Install Platform Toolkit package via Package Manager window
3. Open Play Mode Controls window (Window > Platform Toolkit > Play Mode Controls)
4. Add Play Mode Controls Settings
5. Go to Test Account Data
6. In Accounts List press “+” 15-16 times to add items to the list
7. Observe Console window

Actual results: “[UI Toolkit] Could not retrieve the value at path 'PublicName' for source of type 'PlayModeControlsViewModel': the path from the source to the target is either invalid or contains a null value” warnings are spammed in the Console window
Expected results: No warnings are spammed in the Console window

Reproducible with versions: 1.0.0 (6000.3.11f1, 6000.4.0b11, 6000.5.0a8)
Can’t test with versions: 6000.0.70f1 (Package is not supported)

Tested on (OS): macOS Silicon Tahoe 26.3 (M1)

Warnings: 

{code:java}
[UI Toolkit] Could not retrieve the value at path 'Picture' for source of type 'PlayModeControlsViewModel': the path from the source to the target is either invalid or contains a null value. (PlayModeControlsWindow)
UnityEditor.RetainedMode:UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/RetainedMode.cs:46)
{code}

{code:java}
[UI Toolkit] Could not retrieve the value at path 'Achievements' for source of type 'PlayModeControlsViewModel': the path from the source to the target is either invalid or contains a null value. (PlayModeControlsWindow)
UnityEditor.RetainedMode:UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/RetainedMode.cs:46)
{code}

{code:java}
[UI Toolkit] Could not retrieve the value at path 'SaveData' for source of type 'PlayModeControlsViewModel': the path from the source to the target is either invalid or contains a null value. (PlayModeControlsWindow)
UnityEditor.RetainedMode:UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/RetainedMode.cs:46)
{code}