LuaTeX has problems with certain unicode characters

[Udicoudco]

On Sat, Jul 27, 2024 at 8:45 PM Bernd <bernd.kappenberg at gmx.de> wrote:
>
> %% LyX 2.4.1 created this file. For more info, see https://www.lyx.org/.
>
> %% Do not edit unless you really know what you are doing.
>
> \documentclass[ngerman]{report}
>
> \usepackage[T1]{fontenc}
>
> \usepackage[utf8]{inputenc}
>
> \setcounter{secnumdepth}{3}
>
> \setcounter{tocdepth}{3}
>
> \usepackage{babel}
>
> \begin{document}
>
> s͡\.{͏}t ⸺ ⸻
>
> \end{document}

Can you provide a LyX file?
>From the LaTeX export it looks
like you are not using LuaLaTeX,
which explains the error message.

Udi