Graph Toolkit Blackboard groups get collapse unexpectedly when navigating with arrow keys

Steps to reproduce:

1. Open the "66ET.zip" project
2. Open the "New Graph" Graph
3. Select the First "New Group" group in the Blackboard
4. Spam the right-arrow key on the keyboard to eventually expand all the groups
5. Observe the Blackboard

Actual results: previously expanded groups are collapsed

Expected results: All Groups are expanded

Reproducible with versions: 0.2.0-exp.1 (6000.3.0a6, 6000.3.18f1), 6000.4.12f1, 6000.5.1f1, 6000.6.0a7

Can’t test with versions: 6000.0.77f1 (No Graph Toolkit)

Tested on (OS): Windows 11 Pro (25H2)

Notes:

• The groups collapse seemingly only when the blackboard view needs to scroll