Steps to reproduce:
1. Open the attached “IN-120289.zip” project
2. Open 'Assets/ScenarioSubgraph'
3. Click on “ScenarioEditorBlockNode” that is inside of “ScenarioEditorContextNode”
4. Observe the Console

Expected result: No errors are thrown
Actual result: “NullReferenceException: Object reference not set to an instance of an object” errors are thrown

Reproducible with: 0.1.0-exp.1 (6000.2.12f1), 0.4.0-exp.2 (6000.2.12f1, 6000.3.0b10)
Could not test with: 0.4.0-exp.2 (6000.0.62f1 (Not supported on 6.0), 6000.4.0a4 (Could not resolve errors))

Reproducible on: Windows 11 Pro (24H2)
Not reproducible on: No other environments tested

Note: Throws 2 errors, one for mouse down and one for mouse up

(See comment from [~tristan] )