1. Got 3 toggle buttons. Bt1,Bt2,Bt3
2. and 3 content panels. A,B,C
3. The first toggle has "starting state" checked.
4. Activate and Deactivate is set correctly for each toggle.
5. When the scene is initially fired off, content A,B are displayed simultaneously.
6. However, When clicking buttons manually, the contents are enabled/disabled correctly.
7. This problem doesn't occur when there is only 2 buttons and 2 content panels.