Subgraph variables are not synced when the blackboard variables are overridden at runtime

How to reproduce:

1. Open the “BehaviorTest.zip“ project
2. Open the “SampleScene“
3. Enter Play Mode
4. Observe the Game view

Actual result: Cube jumps to one of the Spheres and stops moving
Expected result: Cube keeps jumping between the two Spheres

Reproducible in: 1.0.13, 1.0.15 (6000.0.67f1, 6000.3.7f1, 6000.4.0b7, 6000.5.0a6)
Could not test in: 1.0.1, 1.0.12 (Issues with downgrading the package)

Reproduced on: Windows 11 Pro (25H2)
Not reproduced on: No other environment tested