sSortDataType/Sorting gets affected when columns are hidden

ureshdes

I'm using a table where some columns are editable/input fields. Those columns are defined with "sSortDataType": "dom-text" / "sSortDataType": "dom-select" during init. As part of user functionality, the use can show/hide a couple of different fields (which are also editable fields), handled using fnSetColumnVis. Once at least 1 column is hidden, sorting doesn't work on any of the columns where sSortDataType is set.

Is this a bug or do I need to do anything extra to overcome this?