Reproduction steps:
1. Open the attached “Test-GraphToolkit“ project
2. Open the “Assets/ScenarioGraphEditor” Scenario Graph using Graph Editor
3. Observe that “ScenarioEditorContextNode” node contains block nodes with string inputs
4. Try to add a string variable in the Blackboard

Expected result: The string type is available in the variable add menu
Actual result: The string type is not available

Reproducible with: 0.1.0-exp.1 (6000.2.0b11, 6000.3.0a3)
Couldn't test with: 0.1.0-exp.1 (6000.0.54f1, 6000.1.14f1) (Graph Toolkit not supported in these versions)

Reproducible on: macOS Sequoia 15.5 (M1 Max), Windows 11
Not reproducible on: No other environments tested

Note: If the lines 9-14 in the “Assets/Scripts/Editor/Nodes/ScenarioEditorTaskNode” script are uncommented, the string type becomes available