How to reproduce:
1. Open the attached "IN-101100" project
2. In the Project tab, open the "SampleScene"
3. Enter Play mode
4. In the Project tab, select the "Test" Script Graph
5. Connect the "Get variable" node to "Custom Event" node
6. Observe the Game view

Expected result: "Cube" GameObject spins
Actual result: "Cube" GameObject does not spin

Reproducible with: 1.8.0 (2022.3.0f1,2023.2.0a23), 1.9.6 (2022.3.62f1, 6000.0.49f1, 6000.1.4f1, 6000.2.0b2)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: Entering Play mode after the nodes are connected spins the "Cube" GameObject