I have a random blank page before a new appendix chapter in my document and have tried everything online to no avail.

Here is my class setup:


and here is where the blank page is appearing:

\section{Adding an Item to a Room}

Access the Admin Panel.
Click on \textit{Room Management}.
Select the specified entry from the list.
Click \textit{Add Item to Room}.
Select the \textit{Item} from the list.
Click \textit{Link}.


\chapter{Raw Results Output}\label{app:Raw Results}


\subsection{Application Monitoring}\label{sec: Load Testing Evidence}

\label{fig:Application Monitoring Evidence}
\captionof{figure}{Evidence of monitoring the web-application.}

Any help is greatly appreciated.

  • 4
    You are using openright, which means a \chapter will be on the right (or recto, typically odd numbered) side of a two-side layout. The assumption is that your previous section ends on an odd page, implying that TeX has to clear past an even page to get to an odd page which will open on the right. Could you clarify this information, since it's not possible to identify that from your code snippet. – Werner May 1 '17 at 19:07
  • The page finishes on number 99, the blank page appears on 100 and then the new appendix chapter is on 101. It hasn't happened anywhere else and I'm pretty sure I've got a mixture of chapters ending on even and odd pages? I will be printing it one sided as well. – James May 1 '17 at 19:15
  • 1
    Your "pretty sure"... you're the only one who would know, since we can't replicate the problem with your code snippet. Are you using any other layout packages, perhaps geometry and specifying the twoside option? – Werner May 1 '17 at 19:23
  • 2
    @James Try to make the image smaller. If you fill the whole textheight with it, there is not enough room left for the caption and the titles from chapter/section/subsection – user36296 May 1 '17 at 19:46
  • 1
    do you intend that image to come under your Application Monitoring heading? If so the height should be less than \textwidth so you should reduce the height here height=\textheight – David Carlisle May 1 '17 at 19:49

Your appendix chapter has no breakable content on the first page, and therefore flushes to a subsequent page. By default, TeX ties a sectional heading (\chapter, \section, \subsection, ...) with whatever follows it in order to avoid a sectional heading being orphaned at the bottom of a page.

In your case, this means the \chapter heading is tied to the \section which, in turn, is tied to the \subsection which, in turn is tied to a large unbreakable minipage. Since none of these fit on the page as a whole, it is necessarily flushed to the following page, leaving a blank one behind. You'll notice this behaviour by looking at the .log and identifying the place where there's an overfull \vbox warning around page 100.

Solution: Introduce some breakable content (like paragraph text, or a list), or shrink the size of your image so that it will fit on the page together with all the other sectional headings.

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