There is a known issue when attempting to view groups with more than one column in the Preview Tool. At the moment, the contents of multiple columns are being 'squashed' together into a single column. This only affects the main Preview window - viewing the same question group in a web browser will cause the content to display correctly. If you need to view an affected question group in the Preview window, you can use the Browser Emulation option found in the Preview's main toolbar. A screenshot of this is shown here. When using emulation, you can view the result of any action taken inside the browser by clicking the Refresh button in the Preview's main toolbar. This allows you to perform a series of actions, then switch to the Preview window without closing the browser and click Refresh to see your updated Form Trace and Variable list. We hope to have this issue resolved soon, but if you have any questions in the meantime please get in touch via the forum.