Abaixo incluí um mwe. Como você pode ver, no último diagrama, os erros das últimas três caixas são renderizados na próxima página. Como posso consertar isso? Eu compilo usando o TexShop que usa esse comando pdftex --file-line-error --synctex=1. Sim, compilei mais de duas vezes.
\documentclass[11pt, letterpaper, oneside]{memoir}
\usepackage{libertine}
\usepackage{libertinust1math}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{enumitem, amssymb}
\usepackage{textcomp}
\usepackage[tracking = true, letterspace = 125]{microtype}
\usepackage{soul}
\usepackage{mfirstuc}
\usepackage{scalerel}
\usepackage[skins, raster]{tcolorbox}
\usepackage{tikz}
\usetikzlibrary{decorations,decorations.markings}
\usepackage{etoolbox}
\usetikzlibrary{optics}
\usepackage{draftwatermark}
\usepackage[pass]{geometry}
\usepackage[hyphens]{url}
\usepackage{hyperxmp}
\usepackage{hyperref}
\usepackage{xfrac}
\usepackage{multicol}
\usepackage[english]{babel}
\usepackage{blindtext}
% force LaTeX to write the author, title, and copyright into the PDF
\makeatletter
\AtEndDocument{\hyxmp@find@metadata\hyxmp@embed@packet}
\makeatother
\hypersetup{
colorlinks=true,
linktoc=all,
urlcolor=blue,
linkcolor=part,
draft=false,
pdfauthor={some authoer},
pdftitle={some org},
pdfcopyright={Copyright \copyright~2019 by author. Some rights reserved.},
pdfpagelabels=true,
implicit=false
}
\chapterstyle{ell}
\setlength{\emergencystretch}{6pt}
\setlrmarginsandblock{1in}{1in}{*}
\checkandfixthelayout
\linespread{1.3}
%%%%%%%%%%%%%%%%%%%%%%%%%%
% The Document
%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\title{A Title}
\author{An Author}
\date{}
\maketitle
\frontmatter
\blindtext
\mainmatter
\Blindtext
\tcbset{enhanced, nobeforeafter, sidebyside align=top,box align=center, width=1.6in}
\begin{center}
\begin{tcolorbox}[remember as=one]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=two]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=three]
Many more somethings happen and the world nearly dies
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=four]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=five]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=six]
a result
\end{tcolorbox}
\end{center}
\begin{tikzpicture}[overlay,remember picture,line width=0.5mm]
\draw[->] (one.east) to (two.west);
\draw[->] (three.east) to (four.west);
\draw[->] (five.east) to (six.west);
\end{tikzpicture}
\blindtext
\begin{center}
\begin{tcolorbox}[remember as=1]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=2]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=3]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=4]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=5]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=6]
a result
\end{tcolorbox}
\end{center}
\begin{tikzpicture}[overlay,remember picture,line width=0.5mm]
\draw[->] (1.east) to (2.west);
\draw[->] (3.east) to (4.west);
\draw[->] (5.east) to (6.west);
\end{tikzpicture}
\backmatter
\blindtext
\end{document}
Responder1
Basta colocar a imagem tikz no mesmo centerambiente para forçá-la a ficar na mesma página... O LaTeX decidiu colocar a caixa de cores na próxima página, mas mudou de ideia e forçou isso depois de pensar duas vezes na anterior... a imagem tikz estava fora o ambiente e não segui o segundo pensamento do LaTeX porque ele é impresso após a segunda compilação interna (precisa de mais um do que uma imagem tikz real como sobreposição)... Espero ter ajudado.
\documentclass[11pt, letterpaper, oneside]{memoir}
\usepackage{libertine}
\usepackage{libertinust1math}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{enumitem, amssymb}
\usepackage{textcomp}
\usepackage[tracking = true, letterspace = 125]{microtype}
\usepackage{soul}
\usepackage{mfirstuc}
\usepackage{scalerel}
\usepackage[skins, raster]{tcolorbox}
\usepackage{tikz}
\usetikzlibrary{decorations,decorations.markings}
\usepackage{etoolbox}
\usetikzlibrary{optics}
\usepackage{draftwatermark}
\usepackage[pass]{geometry}
\usepackage[hyphens]{url}
\usepackage{hyperxmp}
\usepackage{hyperref}
\usepackage{xfrac}
\usepackage{multicol}
\usepackage[english]{babel}
\usepackage{blindtext}
% force LaTeX to write the author, title, and copyright into the PDF
\makeatletter
\AtEndDocument{\hyxmp@find@metadata\hyxmp@embed@packet}
\makeatother
\hypersetup{
colorlinks=true,
linktoc=all,
urlcolor=blue,
linkcolor=part,
draft=false,
pdfauthor={some authoer},
pdftitle={some org},
pdfcopyright={Copyright \copyright~2019 by author. Some rights reserved.},
pdfpagelabels=true,
implicit=false
}
\chapterstyle{ell}
\setlength{\emergencystretch}{6pt}
\setlrmarginsandblock{1in}{1in}{*}
\checkandfixthelayout
\linespread{1.3}
%%%%%%%%%%%%%%%%%%%%%%%%%%
% The Document
%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\title{A Title}
\author{An Author}
\date{}
\maketitle
\frontmatter
\blindtext
\mainmatter
\Blindtext
\tcbset{enhanced, nobeforeafter, sidebyside align=top,box align=center, width=1.6in}
\begin{center}
\begin{tcolorbox}[remember as=one]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=two]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=three]
Many more somethings happen and the world nearly dies
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=four]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=five]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=six]
a result
\end{tcolorbox}
\begin{tikzpicture}[overlay,remember picture,line width=0.5mm]
\draw[->] (one.east) to (two.west);
\draw[->] (three.east) to (four.west);
\draw[->] (five.east) to (six.west);
\end{tikzpicture}
\end{center}
\blindtext
\begin{center}
\begin{tcolorbox}[remember as=1]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=2]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=3]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=4]
a result
\end{tcolorbox}
\end{center}
\begin{center}
\begin{tcolorbox}[remember as=5]
Something happens
\end{tcolorbox}
\qquad
\begin{tcolorbox}[remember as=6]
a result
\end{tcolorbox}
\begin{tikzpicture}[overlay,remember picture,line width=0.5mm]
\draw[->] (1.east) to (2.west);
\draw[->] (3.east) to (4.west);
\draw[->] (5.east) to (6.west);
\end{tikzpicture}
\end{center}
\clearpage
\backmatter
\blindtext
\end{document}