Currently I'm using fourier package to write mathematics documents
However, when I attempt to use \left| \right| to indicate the module of a vector, this is what I get. Also, when I use \left( \right) to indicate the angle between vectors, something strange also appear (see both of these in the following picture)
This is a simplifed version of my whole document
\documentclass[12pt,a4paper,oneside]{book}
\usepackage{fourier}
\usepackage{amsmath,amssymb}
\usepackage{mathrsfs}
\usepackage{fancyhdr}
\usepackage{enumerate}
\usepackage[most]{tcolorbox}
\usepackage[tikz]{bclogo}
\usepackage{tabvar}
\usepackage{venndiagram}
\usepackage{pgfplots}
\usepgfplotslibrary{fillbetween}
\usetikzlibrary{patterns}
\pgfplotsset{compat=1.9}
\usepackage[top=2cm, bottom=2cm, left=2cm, right=1.5cm] {geometry}
\usepackage[hidelinks,unicode]{hyperref}
\usepackage{currfile}
\DeclareSymbolFont{largesymbols}{OMX}{yhex}{m}{n}
\DeclareMathAccent{\wideparen}{\mathord}{largesymbols}{"F3}
\begin{document}
Given two vectors $\vec{a}$ and $\vec{b}$ such that $\left| \vec{a} \right| = 2$,
$\left|\vec{b} \right| = 3$, $\left( \vec{a}, \vec{b} \right) = 60^\circ$.
Determine the value of $\left| \vec{a} + \vec{b} \right|$.
\end{document}
Do you have any idea why this is happening? Thank you for reading.