Hi Rick,
Updated to 0.5.5.3 and noted that the preview text wrap issue mentioned in another thread is now there all the time unless I reduce the preview pane width enough to make the RHS go away. Not really an issue but as always I want to get you that feedback.

You need to make sure you update the templates.
+++ Rick ---
I ran this:

Is there some specific files I should compare to verify? Having said that, the prior behavior in an earlier version would re-wrap the text without the overlap.
You might have aggressive caching set in your Edge settings that's causing this.
I don't see this behavior - for me the sidebar shows and hides on resizing. Just made sure this also shows up in an 'updated' project (not the project I use to build the client features) and it works. I did see that I needed a hard forced refresh for the script to kick in with the proper behavior.
In the previewer, right click, Forced Browser Refresh, which forces a hard refresh of all resources.
+++ Rick ---