Bug Selecting Control Panel Tab

Based on previous threads I have read, I am marking this as a bug.

Reproduction: OSRS - Panels will not be selected in certain circumstances (tutorial island).

Code (Text):

1. ControlPanelTab.INVENTORY.open();
2. InterfaceWindows.getInventory().open();
3. Inventory.getItems(); //And variations thereof

Solutions require directly accessing interfaces.