We are using Lua 5.3 Check for file /usr/local/texlive/2021/texmf-var/luatex-cache/generic/names/luaotfload-names 1. LibertinusKeyboard-Regular.otf libertinuskeyboard /usr/local/texlive/2021/te...Regular.otf 2. LibertinusMath-Regular.otf libertinusmath /usr/local/texlive/2021/te...Regular.otf 3. LibertinusMono-Regular.otf libertinusmono /usr/local/texlive/2021/te...Regular.otf 4. LibertinusSans-Bold.otf libertinussans /usr/local/texlive/2021/te...ns-Bold.otf 5. LibertinusSans-Italic.otf libertinussans /usr/local/texlive/2021/te...-Italic.otf 6. LibertinusSans-Regular.otf libertinussans /usr/local/texlive/2021/te...Regular.otf 7. LibertinusSerif-Bold.otf libertinusserif /usr/local/texlive/2021/te...if-Bold.otf 8. LibertinusSerif-BoldItalic.otf libertinusserif /usr/local/texlive/2021/te...dItalic.otf 9. LibertinusSerif-Italic.otf libertinusserif /usr/local/texlive/2021/te...-Italic.otf 10. LibertinusSerif-Regular.otf libertinusserif /usr/local/texlive/2021/te...Regular.otf 11. LibertinusSerif-Semibold.otf libertinusserif /usr/local/texlive/2021/te...emibold.otf 12. LibertinusSerif-SemiboldItalic.otf libertinusserif /usr/local/texlive/2021/te...dItalic.otf 13. LibertinusSerifDisplay-Regular.otf libertinusserifdisplay /usr/local/texlive/2021/te...Regular.otf 14. LibertinusSerifInitials-Regular.otf libertinusserifinitials /usr/local/texlive/2021/te...Regular.otf