ListView.SetDataSource(list), returns 'null' on ListView.GetDataSource()

[najak3d]

I'm on NovaUI 1.2.2. In two places in my code (BindOption for ToggleVisuals), before calling "SetDataSource(list)" I check to make sure it's not already set -- but doing "GetDataSource()" always returns NULL, even right after I call SetDataSource(list) with a non-null list.

"OptionsView" is a ListView.
dataSource.OptionNames is a List.

Here's the code snippet: