Mrthfx

It seems that I cannot reference tables when they are placed inside onlyenv, but . This applies to both of cref and the traditional ref

The topic Table numbers in beamer is not an answer to this question because my question is asking about referencing a table, not inserting its number in a caption.

Here is the MWE. When you try to run it, you must do so twice to get the real result.

documentclass[aspectratio=169, xcolor={x11names}]{beamer}





usecolortheme{seahorse}

useoutertheme{miniframes}

useinnertheme{inmargin}

usefonttheme[onlylarge]{structurebold}

setbeamertemplate{caption}[numbered]



% Command to change margins for a page wide

makeatletter

newcommand{framePageWide}{

    defGm@lmargin{5mm}%

    defGm@rmargin{5mm}%

    textwidth=dimexprpaperwidth-Gm@lmargin-Gm@rmarginrelax

    hsizetextwidth

    columnwidthtextwidth

    setlength{linewidth}{textwidth}

    hoffset=dimexpr-beamer@leftsidebar+Gm@lmargin-0mmrelax

}

makeatother

newcommand{framePageWideEnumI}{setlength{leftmargini}{10mm}}





    usepackage{adjustbox}

    usepackage{ragged2e}

    usepackage{tabularx}

% BEGIN_FOLD



        newcolumntype{C}{ >{arraybackslash Centering}X }



            newcommand{scalelinespace}[1]{

                rule{0pt}{#1normalbaselineskip}

                                        }



% END_FOLD



    usepackage{booktabs}

    usepackage{makecell}



    usepackage{amsmath}

    usepackage{amssymb, amsfonts}



    usepackage{cleveref}

    crefformat{table}{Table #1}





begin{document}



{framePageWide



begin{frame}{Tables}



begin{onlyenv}<1>



    framePageWideEnumI



    begin{itemize}

        item Item 1

        item Item 2

    end{itemize}



end{onlyenv}



begin{onlyenv}<2>



    begin{table}



        begin{adjustbox}{minipage={0.5textwidth}, valign=t}



            caption{Time, in seconds, needed to calculate a single ${Z}_{bus}$ Element}

            label{table:results2}



            begin{tabularx}{linewidth}{c C C}



                toprule



                System Size & Our Method & Brown's Method

                \

                addlinespace



                200-bus & $4.3times10^{-6}$ & $0.092$

                \

                Xhline{0.25mm}



                2383-bus & $3.8times10^{-6}$ & $166.2$

                \

                Xhline{0.25mm}



                3120-bus & $3.2times10^{-6}$ & $398.8$

                \



                bottomrule



            end{tabularx}



        end{adjustbox}

        hfill

        begin{adjustbox}{minipage={0.43textwidth}, valign=t}



            From cref{table:results2} we see that



            begin{itemize}

                item Our method is fast

                item By contrast, Brown's becomes very slow when the system is large

            end{itemize}



        end{adjustbox}



    end{table}



end{onlyenv}





end{frame}



}



end{document}