如何使两个断点（黑色和蓝色）的高度相同？

Question

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%Compilation --------------------------------------> txs:///xelatex
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\documentclass[10pt,a4paper]{book}
\usepackage{amsmath, amsfonts, amssymb}
\usepackage{booktabs, bookmark, blindtext}
\usepackage{calculator, color, calc, environ, fancyhdr, float, fontawesome, frcursive, comicneue, colortbl}
\usepackage{incgraph, ifthen, ifpdf}
\usepackage[margin=1cm]{geometry}
\usepackage{graphicx, hyperref}
\usepackage{lipsum, lmodern, longtable, ltablex, mathrsfs, mdframed, multicol, multirow}
\usepackage{paracol, pgf, pgffor, polyglossia, pspicture}
\usepackage{pstricks-add, pstricks, pythontex}
\usepackage{scrextend, shapepar, siunitx, spreadtab, supertabular}
\usepackage{tabu, tabularcalc, tabularx, tcolorbox, tikz, tikzpagenodes,array}
\usepackage{titlesec}
\usepackage{titletoc, tocloft, tocvsec2, type1cm}
\usepackage{varwidth, xcolor, xparse}
\pagestyle{empty}
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\tcbuselibrary{breakable, external, fitting,
    hooks, , magazine, most, poster, 
    raster, skins, theorems, vignette, 
    %xprase, documentation, 
    %listings, minted
}

\usetikzlibrary{decorations.pathmorphing, patterns}
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
\newtcolorbox[]{boxe}[1][]{enhanced, 
    breakable, 
    #1}

%\NewTColorBox[init options]{envname}{specification}{options}


\begin{document}


\newtcolorbox[]{mybox}[1][]{enhanced jigsaw, breakable,
    equal height group=mybox, colframe=red, 
    watermark color=yellow!25!white,
    watermark text=\arabic{tcbbreakpart},
}



\begin{paracol}{2}
    \begin{mybox}
        \blindtext[5]
    \end{mybox}
    \switchcolumn
    \begin{mybox}
        \blindtext[6]
    \end{mybox}
\end{paracol}

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\newpage
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\end{document}