Acronyms in a table environment are not shown in the list of acronyms

Question

I'm having a problem with the Acronyms' list. The acronyms mentioned in a table are not printed in the list of acronyms.

I'm using the acro package and calling the acronyms with \acs because I only want the short format in the text. But this does not have any effect on the problem. I'm creating the list by using \printacronyms.

I've already tested this by placing the acronyms outside the table. In this case they're printed in the list.

Here's an example:

\documentclass[10pt, a4paper]{article}
    \usepackage[utf8]{inputenc}
    \usepackage[ngerman]{babel}
    \usepackage[T1]{fontenc}
    \usepackage{adjustbox}
    \usepackage{makecell}
    \usepackage{numprint}
    \selectlanguage{ngerman}
    \usepackage{float}
    \usepackage{tikz}
    \usepackage[linewidth=1pt]{mdframed}
    \usepackage{graphicx}
\usepackage{acro}
\DeclareAcronym{gesch}{
 short = gesch. ,
 long  = Geschätzt,
 class = abbrev
                      }

\DeclareAcronym{tsd}{
 short = Tsd. ,
 long  = Tousend,
 class = abbrev
                      }
\DeclareAcronym{utaut}{
 short = UTAUT ,
 long  = Unified Theory of Acceptance and Use of Technology ,
 class = abbrev
                      }                       
\DeclareAcronym{usw}{
 short = usw. ,
 long  = Und so weiter ,
 class = abbrev
                      }


\begin{document}
    \pagenumbering{roman}
\newpage
\printacronyms
\newpage
\pagenumbering{arabic}


\section{Theoretischer Hintergrund}
Test the acronyms \acs{usw}. The Theory is \acs{utaut}.
\begin{table}[H]
    \centering
        \begin{mdframed}
            \begin{adjustbox}{max width=0.99\textwidth,center}
                \begin{tabular}{llccc}
\hline 
\textbf{Stadt} & \textbf{Land} & \textbf{Bevölkerungsanzahl} & \makecell{\textbf{\acs{gesch}} \ \textbf{Nutzer}} & \makecell{\textbf{\acs{gesch}} \ \textbf{Nutzer in $%$}} \ 
 & & & & \
Poznan & PL & \numprint{530} \acs{tsd} & \numprint{450} \acs{tsd} & 84,9$%$ \ 
Madrid & SP & \numprint{173} \acs{tsd} & \numprint{170} \acs{tsd} & 97,8$%$ \ 
& & & & \ 
\hline
\hline
& & & & \
Berlin & DE & \numprint{222} \acs{tsd} & \emph{\numprint{173}} \acs{tsd} & \emph{80,8$%$}  \
& & & & \
\hline 
                \end{tabular}
            \end{adjustbox}
        \end{mdframed}
\caption[Geschätzte Anteile]{Geschätzte Anteile (Quelle: Eigene Verarbeitung)}
\label{tabi}
\end{table}
\end{document}

This is what I get (also after compiling multiple times):

while this is what I need (I get this after placing the acronyms outside the table environment as such : Test the acronyms \acs{usw}. The Theory is \acs{utaut}. \textbf{\acs{gesch}} \numprint{450} \acs{tsd}):

Any suggestions how to show all acronyms in the list wherever they're mentioned in the document?

Answer 1

A better title for the question would probably be Acronyms used only in a table environment are not shown in the list of acronyms and a minimal example reproducing the behavior might be:

\documentclass{article}
\usepackage{acro}
\DeclareAcronym{a}{
  short = a ,
  long  = the letter a
}
\begin{document}
\printacronyms
\begin{table}
  \ac{a}
\end{table}
\end{document}

This leads to an empty list of acronyms. The reason is that inside floats acro turns off the mechanism which marks acronyms as used. That is because the placement of floats usually is somewhat independent from the surrounding text and otherwise acronyms might be marked as used too early. It is assumed that users use and explain the acronyms in the running text anyway.

However, unfortunately this behavior is not documented prior to v3.2a (2020/11/08) and obviously it might be preferable to users to revert acro's behavior in floats. v3.2a and greater provide the option patch/floats = true|false to turn it off and on. You can also use \acswitchon at the beginning of floats to turn the behaviour off only for certain floats (this also works in earlier versions).

\documentclass{article}
\usepackage{acro}
\DeclareAcronym{a}{
  short = a ,
  long  = the letter a
}
\acsetup{patch/floats=false}
\begin{document}
\printacronyms
\begin{table}
  \ac{a}
\end{table}
\end{document}