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It appears to be a well-known bug (see, e.g., this GitHub issue, this one, and the overleaf article), but I still can't find a fix.

A simple diagram like that appears mirrored in the current version of LuaTeX locally ( pgf 3.1.9a, LuaTeX, Version 1.15.0 (TeX Live 2022/Homebrew), Lua 5.4.4) as well as on overleaf:

\documentclass[]{article}

\usepackage{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{gensymb}

\usepackage{tikz}

\usepackage{tikz-feynman} \title{Example} \author{Evgenii Zheltonozhskii}

\begin{document}

\maketitle

\begin{align} \feynmandiagram [vertical=a to b] { i1 [particle=(\nu_{\beta})] -- [fermion] a -- [fermion] f1 [particle=(\beta)], a -- [boson] b, }; \end{align} \end{document}

Result Expected result

This answer suggests that the problem is with random number generator in newer Lua versions but none of the proposed fixes worked for me.

EvgeniyZh
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0 Answers0