the following code works fine in article class but in beamer class it produce white space for persian text!
Compile details: XeLaTeX + TexLive 2022 + TeXstudio 4.5.1 + Windows 10
\documentclass[10pt]{beamer}
%aspectratio = 169
%\usefonttheme[onlymath]{serif}
%\usefonttheme{professionalfonts}
\usepackage[most]{tcolorbox}
\usepackage{xepersian}
\settextfont{B Yas}
%\setdigitfont{Yas}
%\setfontfamily{\yas}{B Yas}
%\setbeamerfont{frametitle}{family=\yas}
%\setmainfont{B Yas}
\begin{document}
\begin{frame}[plain,noframenumbering]{mytitle}
\tcbset{enhanced,colback=red!5!white,
boxrule=0.4pt,%sharp corners,
colframe=red!75!black,fonttitle=\Huge,box align=center,
halign=center,
valign=center,coltext=green}
\begin{tcolorbox}[drop lifted shadow]
\Huge
I think, therefore I am!\
مولوی یک شاعر متبحر است. Not printed!\
Why??
\end{tcolorbox}
\end{frame}
\end{document}

\setsansfont{...}? – samcarter_is_at_topanswers.xyz Mar 16 '23 at 19:23