When SS is activated it causes the content of your existing sidebar content to completely disappear. When you de-activate SS, your content then reappears. Activate it, content disappears.
This plugin has always worked brilliantly in the past. The problem seems to have begun after the last Genesis update (1.8.1). This is happening on a non-modified official Genesis child theme, and yes -- the WP, Genesis, and the SS plugin are up to date/latest versions. I build out several websites a month on this framework. I miss the ease of using this plugin! Hoping the issue can be resolved soon.