I'll see what I can do about screenshots, but it's tricky to demonstrate in static display as most of the bits being impacted are XenForo's dynamic CSS/Java overlays and actions that automatically adjust and respond to certain actions. A lot of this ended up being broken as soon as the Side Rails started to appear, making it impossible to post new threads via some methods or to see a selection box for smilies etc. Lots of stuff like that, it really breaks the forum software in a lot of ways as XenForo uses a lot of dynamic styling and actions.
So for example, under XenForo you can often start a new post by simply clicking into the 'thread title' box at the top of a thread summary page for a specific category. Upon doing that this, a drop-down box for post entry will normally appear when working correctly:
But when you enable Side Rails (after they start showing), then clicking into the 'Thread title' box at the top is simply unresponsive and no new post display appears. So it just looks like its default form:
Another example would be the quick reply box at the bottom of threads. With Side Rails enabled the box appears normal, until you try to use is. When you try to use it, you find that that the temporary 'Write your reply..' text no long disappears when you start typing and none of the icons (emoticons, quotes, paragraphs etc.) respond to being selected. Essentially, this whole area is broken:
I could list many other things that are broken, but there's so much that it's hard to give a simple summary. I don't have clear visibility of the additional code that Ezoic adds for siderails (CSS and Java), so I'm not sure exactly which bits are conflicting. But as I say, XenForo's forum software does use a lot of overlays and side rails are a similar sort of mechanism, so there's clearly some sort of conflict occurring.
This is why as a short-term fix, it would be good to know how I can disable Side Rails on just the XenForo system until this conflict is resolved.