Title page does not appear in my thesis

Question

Hi I was using an old version (2005) of Tex before this. I updated to the latest Texmaker yesterday and try to compile my thesis but somehow the PDF file generated does not contain my title page. I know this question have been asked and I have read other post related to my issue here, and even played around with the coding but the title page still doe not appear. Here is the coding for title page :

\documentclass[12pt,a4paper,twoside]{report}
\setlength{\textwidth}{16cm}
\setlength{\oddsidemargin}{0pt}
\setlength{\evensidemargin}{0pt}
\setlength{\parskip}{3mm}
\setlength{\parindent}{0mm}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\graphicspath{{images/}}
\usepackage{setspace}
%\usepackage{biblatex}
%\usepackage{url}
\usepackage{epsfig}
\usepackage{filecontents}
\usepackage{xparse,nameref}
%\usepackage{hyperref}
\usepackage{mathrsfs}
\usepackage[nokeyprefix]{refstyle}
\usepackage{mathtools}
\usepackage{thmtools}
\usepackage{enumerate}% http://ctan.org/pkg/enumerate
\usepackage{enumitem}
\usepackage{thm-restate}
\usepackage{cleveref}
\usepackage{amsmath}
\usepackage{url}
\usepackage{amsthm}
\DeclareMathOperator{\lcm}{lcm}
\DeclareMathOperator{\ord}{ord}
\usepackage{cellspace}
\setlength\cellspacetoplimit{4pt}
\setlength\cellspacebottomlimit{4pt}
\usepackage{booktabs}
\setlength\defaultaddspace{2ex}
\usepackage{graphicx}
\usepackage{array}
\usepackage{tabularx,ragged2e,booktabs,caption}
\usepackage[figuresleft]{rotating}
\usepackage{rotating}
\newcolumntype{C}{>{\Centering\arraybackslash}X}
\newcommand\swb{{\scriptstyle\Box}} % "small white box"
\usepackage{mathtools}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usetikzlibrary{arrows}
\setcounter{secnumdepth}{3}
\usetikzlibrary{shapes.multipart}
\usepackage{tabu}
\usepackage{amssymb,bm}
\usepackage{framed}
\usepackage{upgreek} %use uptau greek letter
\usepackage{comment} %choose parts not to compile
\usepackage{tikz}
\tikzset{mynode/.style={fill=white,text=black,font=\tiny,inner sep=1pt}}
\usepackage[toc,page]{appendix}
\addtolength{\topmargin}{-.875in}
\newenvironment{numberlists}[1][3\parindent] %for long numberlist command
 {\begin{list}{}{%
   \leftmargin=#1\relax
   \rightmargin=\leftmargin
   \itemsep=\jot
   \parsep=0pt
   \partopsep=0pt
   \labelsep=0pt}}
 {\end{list}}
\newcommand\numlist[2]{%
  \item[]\makebox[0pt][r]{$#1=\lbrack$}%
  \begingroup
  \begingroup\lccode`~=`,\lowercase{\endgroup\def~}{\mathcomma\penalty0 }%
  \mathcode`,="8000
  \thinmuskip=6mu plus 6mu minus 2mu
  $#2\rbrack$%
  \endgroup
}
\mathchardef\mathcomma=\mathcode`, %end of numberlist command
\setlength{\oddsidemargin}{-1in}   \setlength{\evensidemargin}{-1in}
\addtolength{\oddsidemargin}{25mm}\addtolength{\evensidemargin}{20mm}
\setlength{\marginparwidth}{40pt} \setlength{\marginparsep}{10pt}
\setlength{\topmargin}{-5mm}      \setlength{\headsep}{0.5in}
\setlength{\textheight}{227mm}    \setlength{\textwidth}{165mm}
\renewcommand\floatpagefraction{0.8} %   Default = 0.5
\usepackage{listings}
\usepackage{color}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}
\lstset{
  language=Java,
  aboveskip=3mm,
  belowskip=3mm,
  showstringspaces=false,
  columns=flexible,
  basicstyle={\small\ttfamily},
  numbers=none,
  numberstyle=\tiny\color{gray},
  keywordstyle=\color{blue},
  commentstyle=\color{dkgreen},
  stringstyle=\color{mauve},
  breaklines=true,
  breakatwhitespace=true,
  tabsize=3
}
\usepackage{atbegshi}% http://ctan.org/pkg/atbegshi
\AtBeginDocument{\AtBeginShipoutNext{\AtBeginShipoutDiscard}}

\allowdisplaybreaks % allow page breaks
\begin{document}
\begin{titlepage}
\begin{center}
\includegraphics[width=0.70\textwidth]{logo} \\[2cm]

{ \large \bfseries Perfect Triangles : Rational points on Elliptic Curves }\\
Shahrina Ismail \\
\{Candidate's academic degrees\} \\[7cm]
{\em A thesis submitted for the degree of Doctor of Philosophy at\\
The University of Queensland in 2016} \\
School of Mathematics and Physics

\end{center}
\end{titlepage}

\pagenumbering{roman}

\theoremstyle{definition}

\begin{abstract}
here...
\end{abstract}

\tableofcontents

\listoffigures

\listoftables

\newpage
\pagenumbering{arabic}
\onehalfspacing
\chapter{Introduction}
\input{chapters/Introduction}

\onehalfspacing
\chapter{Background and Methodology}\label{chap:2}
\input{chapters/chapter2}


\onehalfspacing
\chapter{Values of $\delta(\mu)$}\label{chap:3}
\input{chapters/chapter3}

\end{document}

Answer 1

The problem of the very first page not appearing appears to be caused by the presence of the following instruction, located near the very end of the preamble:

\AtBeginDocument{\AtBeginShipoutNext{\AtBeginShipoutDiscard}}

What is the purpose of this instruction? If you comment it out (or delete it outright...), the title page material shows up without a problem.

I can't help but comment that the document preamble is a mess. Sorry for having to be so blunt and direct, but there's no way to sugarcoat it. Some packages are loaded more than once, the ordering in which some of the packages are loaded is potentially problematic (e.g., hyperref and cleveref should be loaded toward the end of the preamble), some packages are in conflict with each other (e.g., load enumerate or enumitem, but not both), some setup instructions are repeated or redundant (e.g., why are there 3 instructions to set the value of \oddsidemargin?), still other setup instructions could (and probably should) be streamlined considerably, and the purpose of some of the instructions -- such as the one shown above -- is a mystery, to put it politely. In sum, you may want to make an effort to get a handle on the preamble. You'll experience far fewer surprises of the type that prompted you to post this query to begin with.