Package acmart doesn't show author name

Question

My name doesn't print when using ACM's acmart package. Here is my code

%File: formatting-instruction.tex
\documentclass[sigconf]{acmart}
\setcopyright{acmcopyright}
\copyrightyear{2021}
\acmYear{2021}
\acmDOI{10.1145/1122445.1122456}
\usepackage{authblk}
\usepackage{upgreek}
\usepackage{pgfplots}
\usepackage{filecontents}
\usepackage{siunitx}
\usepackage{subcaption}
\usepackage{tikz}
\usepackage[section]{placeins}
\pgfplotsset{compat=newest} % Allows to place the legend below plot
\usepgfplotslibrary{units} % Allows to enter the units nicely
\usepackage{graphicx}
\DeclareRobustCommand{\bbone}{\text{\usefont{U}{bbold}{m}{n}1}}
\DeclareMathOperator{\EX}{\mathbb{E}}% expected value
\usepackage{times}
\usepackage{helvet}
\bibliography{Research_Paper}
\usepackage{courier}
\usepackage{amsmath}
\frenchspacing
\setlength{\pdfpagewidth}{8.5in}
\setlength{\pdfpageheight}{11in}
\author{ABC}
\email{abc@abc.edu}
\affiliation{%
  \institution{Institution}
  \streetaddress{Address}
  \city{City}
  \state{State}
  \country{USA}
  \postcode{51234}
}
\setcounter{secnumdepth}{0}

\title{Stuff researchers do in their busy time}
\begin{document}
\maketitle
\begin{abstract}
\begin{quote}
Stuff
\end{quote}
\end{abstract}
Why doesn't my name print?
\end{document}

Answer 1

The ACM commissioned Boris Veytsman with the task of producing a LaTeX document class for its publications and has, as far as I know, officially endorsed it.

You should not use font packages with the class, for instance, so papers will be uniform in appearance. If you don't like the font used by the class, don't use acmart; if you must use it because you're making a submission, comply with the editors' requirements of not changing fonts.

The class has several facilities for typesetting authors and affiliations thereof. The authblck package is not compatible with it and should not be loaded.

Other small notes. The quote environment should not be used in the abstract and the abstract must go before \maketitle.

Here's an edited version of your document, with some packages commented out for better clarity. Remove the lines.

\documentclass[sigconf]{acmart}
% Packages
%\usepackage{authblk} % NOT with acmart
\usepackage{upgreek}
\usepackage{pgfplots}
\usepgfplotslibrary{units} % Allows to enter the units nicely
%\usepackage{filecontents} % OBSOLETE
\usepackage{siunitx}
\usepackage{subcaption}
\usepackage{tikz}
\usepackage[section]{placeins} % dubious
\usepackage{graphicx}
%\usepackage{times} % NOT with acmart
%\usepackage{helvet} % NOT with acmart
%\usepackage{courier} % NOT with acmart
\usepackage{amsmath}
% settings
\pgfplotsset{compat=newest} % Allows to place the legend below plot
%\setlength{\pdfpagewidth}{8.5in} % NOT with acmart
%\setlength{\pdfpageheight}{11in}  % NOT with acmart
\frenchspacing
% personal commands
\DeclareRobustCommand{\bbone}{\text{\usefont{U}{bbold}{m}{n}1}}
\DeclareMathOperator{\EX}{\mathbb{E}}% expected value
% metadata
\bibliography{Research_Paper}
\setcopyright{acmcopyright}
\copyrightyear{2021}
\acmYear{2021}
\acmDOI{10.1145/1122445.1122456}
\author{ABC}
\email{abc@abc.edu}
\affiliation{%
  \institution{Institution}
  \streetaddress{Address}
  \city{City}
  \state{State}
  \country{USA}
  \postcode{51234}
}
\title{Stuff researchers do in their busy time}
\begin{document}
\begin{abstract}
Stuff
\end{abstract}
\maketitle
Why doesn't my name print?
\end{document}