Fix: equation misplaced error

arxiv-style/main.tex

@@ -10,6 +10,7 @@
 \usepackage{amsfonts}       % blackboard math symbols
 \usepackage{nicefrac}       % compact symbols for 1/2, etc.
 \usepackage{microtype}      % microtypography
+\usepackage{amsmath}		% cleveref must be loaded after amsmath!
 \usepackage{cleveref}       % smart cross-referencing
 \usepackage{lipsum}         % Can be removed after putting your text content
 \usepackage{graphicx}
@@ -183,7 +184,7 @@ We therefore adopt masked (absorbing) diffusion for discrete channels, where cor
 \begin{equation}
 q(y^{(j)}_k \mid y^{(j)}_0) =
 \begin{cases}
-y^{(j)}, & \text{with probability } 1-m_k,\\
+y^{(j)}_0,            & \text{with probability } 1 - m_k, \\
 \texttt{[MASK]},      & \text{with probability } m_k,
 \end{cases}
 \label{eq:masking_process}