Hello fellows and folks!
Do you know why this is happening? All of the sudden, when I compiled the whole document, the matrix showed up like in the picture. I have this in every figure that appears in my document:
\begin{figure}[!htb]
content
\end{figure}
And also this:
\setlength{\parindent}{2em}
\setlength{\parskip}{0.5em}
\renewcommand{\baselinestretch}{1.1}
\documentclass{article}
\begin{document}
\begin{figure}[!htb]
\centering
$ \underbrace{
\begin{bmatrix}
\checkmark & \color{blue}\textbf{?} & \checkmark & \color{blue}\textbf{?} & \color{blue}\textbf{?}\\
\color{blue}\textbf{?}&\color{blue}\textbf{?} & \color{blue}\textbf{?} & \color{blue}\textbf{?} & \checkmark\\
\checkmark& \color{blue}\textbf{?} & \checkmark & \checkmark & \color{blue}\textbf{?}\\
\color{blue}\textbf{?}& \color{blue}\textbf{?} & \checkmark & \color{blue}\textbf{?}& \color{blue}\textbf{?}\\
\color{blue}\textbf{?} & \checkmark& \color{blue}\textbf{?}& \checkmark & \color{blue}\textbf{?}\\
\checkmark & \color{blue}\textbf{?} & \color{blue}\textbf{?} &\color{blue}\textbf{?} & \checkmark
\end{bmatrix}
}_{\textbf{}}
\neq
\underbrace{
\begin{bmatrix}
\checkmark & \checkmark & \checkmark & \checkmark & \checkmark\\
\checkmark& \checkmark & \checkmark & \checkmark & \checkmark\\
\checkmark& \checkmark & \checkmark& \checkmark & \checkmark\\
\checkmark&\checkmark & \checkmark & \checkmark & \checkmark\\
\checkmark&\checkmark & \checkmark & \checkmark & \color{blue}\textbf{?}\\
\checkmark& \checkmark& \checkmark & \checkmark & \color{blue}\textbf{?}
\end{bmatrix}
}_{\textbf{}}
$
\end{figure}
\end{document}


\checkmarkandbmatrixare not defined with this preamble. Please provide what is actually used to provide that image. – daleif May 21 '19 at 13:08setspaceor some other method. – egreg May 21 '19 at 13:13\begin{figure}[!htb]is a really bad option to use on every figure. Firstly it prevents float pages so makes it more than likely that every figure goes to the end of the document, secondly it uses!That is for occasional use to over-ride document defaults, it clearly makes no sense to set document defaults then always over-ride them, better to set the defaults that you want – David Carlisle May 21 '19 at 13:28halone? – NaveganTeX May 21 '19 at 13:29[htbp]– David Carlisle May 21 '19 at 13:31