Cannot compile kaobook properly using TexLive 2021

Question

I downloaded kaobook template from https://github.com/fmarotta/kaobook, it used to compile properly with Texlive 2019 and 2020. However when I try to compile using TexLive 2021, sidenote, marginfigure and marginnote insert the text "pt0pt" or "em" based on the units used.

\documentclass[fontsize=10pt,twoside=true,numbers=noenddot]{kaobook}
\usepackage{amssymb}
\renewcommand{\labelitemi}{\small$\blacktriangleright$}
\renewcommand{\labelitemii}{\textbullet}
\usepackage{enumitem}
\setlist[itemize]{noitemsep}
\setlist[enumerate]{noitemsep}
\setlist[description]{noitemsep}
\usepackage{tikz}
\usepackage[framemethod=TikZ]{mdframed}
%\mdfsetup{skipabove=\topskip,skipbelow=0pt}
\mdfdefinestyle{kaoboxstyle}{
    skipabove=1.5\topskip,
    skipbelow=.5\topskip,
    rightmargin=0pt,
    leftmargin=0pt,
    %innertopmargin=3pt,
    %innerbottommargin=3pt,
    innerrightmargin=7pt,
    innerleftmargin=7pt,
    topline=false,
    bottomline=false,
    rightline=false,
    leftline=false,
    %linewidth=1pt,
    %roundcorner=0pt,
    %font={},
    %frametitlefont={},
    frametitlerule=true,
    linecolor=black,
    %backgroundcolor=LightBlue,
    fontcolor=black,
    %frametitlebackgroundcolor=LightBlue,
}
\newmdenv[
style=kaoboxstyle,
backgroundcolor=RoyalBlue!25!White,
frametitlebackgroundcolor=RoyalBlue!25!White,
]{kaobox}
%----------------------------------------------------------------------------------------
%   ENVIRONMENT WITH A COUNTER
%----------------------------------------------------------------------------------------
\newenvironment{kaocounter}{
    \refstepcounter{kaocounter}
    \begin{kaobox}[frametitle=Comment~\thekaocounter\autodot]
    }{
    \end{kaobox}
}
\newcounter{kaocounter}
\numberwithin{kaocounter}{section}
\newcommand{\kaocounterformat}{% Format for the caption
    Comment~\thekaocounter\csname autodot\endcsname}
\newcommand{\fnum@kaocounter}{\kaocounterformat}
%----------------------------------------------------------------------------------------
%   FLOATING ENVIRONMENT WITH TOC ENTRIES
%----------------------------------------------------------------------------------------
\newenvironment{kaofloating}{%
    @float{kaofloating}%
}{%
    \end@float
}
\newcommand{\fps@floatingbox}{tbph}
\newcommand{\ftype@floatingbox}{5}
\newcommand{\floatingboxformat}{%
    Insight~\thefloatingbox\csname autodot\endcsname}
\newcommand{\fnum@floatingbox}{\floatingboxformat}
\newcommand*{\ext@floatingbox}{loi}
\addtotoclist[float]{loi}
\newcommand{\listofloiname}{List of Insights}
\newcommand{\l@floatingbox}{\l@figure}
\newcommand*{\listofinsights}{\listoftoc{loi}}
%----------------------------------------------------------------------------------------
%   CITATION ENVIRONMENT
%----------------------------------------------------------------------------------------
% TODO: create a fancy environment for this. Perhaps printing also the 
% abstract.
% Cite commands (assuming biblatex is loaded)
\DeclareCiteCommand{\fullcite}{%
    \defcounter{maxnames}{99}%
    \usebibmacro{prenote}}
{\clearfield{url}%
    \clearfield{pages}%
    \clearfield{pagetotal}%
    \clearfield{edition}%
    \clearfield{issn}%
    \clearfield{doi}%
    \usedriver
    {\DeclareNameAlias{sortname}{default}}
    {\thefield{entrytype}}
}
{\multicitedelim}
{\usebibmacro{postnote}}
\begin{document} 
\KOMAoptions{twoside=semi}
\maketitle
\KOMAoptions{twoside=false}
\chapter{Genetic control}
This chapter contains notes on genetic control.
\section{Objectives}
\begin{kaobox}[frametitle=Objectives]
\begin{itemize}
    \item  Nucleic Acids


    \begin{itemize}
        \scriptsize
        \item   describe the structure of a nucleotide
        \item   describe formation of a dinucleotide
        \item   distinguish between Ribonucleic acid (RNA) \&   Deoxyribonucleic acid (DNA) nucleotides

    \end{itemize}
    \item Structure and replication of DNA
    \begin{itemize}
        \scriptsize
        \item  describe the structure of DNA
        \item  explain how DNA replicates

    \end{itemize}

    \item Protein synthesis
    \begin{itemize}
        \footnotesize
        \item  outline the process of protein synthesis

    \end{itemize}
\end{itemize}

\end{kaobox}
\
\section{Nucleic acid}
\marginnote[-12em]{Zthini lapha}
\begin{itemize}
    \item olla olla zthini la
\end{itemize}
\end{document}