Diacritics not printed correctly with TIPAUNI

Question

I have asked a question on another problem (see here) and someone suggested using tipauni instead of tipa. My initial problem (font of IPA symbols) has been solved thanks to this suggestion. However, a number of diacritics are now printed incorrectly (e.g. under instead of above the letter, as with the macron above or the caron above in the example below). And two more symbols I have defined myself (one of them is \uhalb in the MWE) are no longer printed. Does anyone have an idea what might be causing this problem?

Here is the MWE

\documentclass[twoside, fontsize=10.2pt, listof=nochaptergap]{scrbook}

%======================================
% === Papierformat ===
\usepackage[paperwidth=17cm, paperheight=24cm, %seitengrösse
outer=2.7cm, inner=2.4cm, top=2.5cm,bottom=2.5cm, %seitenränder
headsep=0.62cm]{geometry} %abstand von kopfzeile zu text
\setlength{\textheight}{19cm} \setlength{\textwidth}{11.9cm} %satzspiegel definieren

% === Schriftart ===
\usepackage{fontspec}
\setmainfont{Times New Roman}

% === Einzüge ===
\setlength\parindent{6mm}

%======================================
% === language packages ===
\usepackage[ngerman]{babel}

%======================================
% === testing ===
\usepackage{showframe}
\usepackage{blindtext}

%======================================
% === Querverweise ===
\usepackage{hyperref} % muss vor leipzig geladen werden
\hypersetup{colorlinks=false, linkcolor=black,unicode=true,
 citecolor=blue, filecolor=blue, urlcolor=blue, pdfauthor=Hasse, pdfkeywords=}
\urlstyle{same}

%======================================
% === Glossar ===
\usepackage[nomain,style=long,nonumberlist,toc,xindy,nopostdot,sort=def,acronym]{glossaries}% package for creating a glossary and package for leipzig glosses (nomain, weil es in einem separaten file ist)
\usepackage{glossary-mcols} %dann wird glossar in zwei spalten gedruckt

% # \input{glossary.tex}

\usepackage[block]{leipzig}

\makeglossaries

\renewcommand{\leipzigname}{Glossierung}%die Leipzigliste umbenennen

%%customised glossings
\renewleipzig{abl}{abl}{Ablativ}
\renewleipzig{acc}{acc}{Akkusativ}
% some more customised glossings

%======================================
% === linguistic examples ===
%
\usepackage{microtype,booktabs}
\usepackage{langsci-gb4e} %https://ctan.math.illinois.edu/macros/xetex/latex/langsci/documentation/langsci-gb4.pdf

\renewcommand{\eachwordone}{\itshape} %italics in first line

%======================================
% === linguistic specific packages ===
\usepackage[english]{varioref}
\usepackage[T2A,T1,T3]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[documentfont=Times New Roman]{tipauni}

% === new tipa symbols ===
\newcommand\uhalb{\ipabar{u}{.7ex}{.5}{}{.5}}
\newcommand\aganz{\ipabar{a}{.5ex}{0.8}{}{}}

%======================================
%======================================
%======================================
\begin{document}
\setcounter{page}{5}

\blindtext

\textipa{an @ \v{s}tei, \i n @ m\={u}r}

\blindtext

\end{document}

Answer 1

If you just want to strike through a character, you don't really need all the complications of \ipabar.

In Unicode there is already U+0289 LATIN SMALL LETTER U BAR, so you might want to use it.

\documentclass{article}

\usepackage{fontspec}
\usepackage[documentfont=Times New Roman]{tipauni}

% === new tipa symbols ===
\makeatletter
\DeclareRobustCommand{\myipabar}[2]{% #1 = letter, #2 = height
  \makebox[0pt][l]{%
    \sbox\z@{\string#1}%
    \vrule width \wd\z@
           height \dimexpr#2\ht\z@+0.05ex\relax
           depth -\dimexpr#2\ht\[email protected]\relax
  }#1%
}
\makeatother

\DeclareRobustCommand\uhalb{\myipabar{u}{.7}}
\DeclareRobustCommand\aganz{\myipabar{a}{.5}}

\begin{document}

\textipa{an @ \v{s}tei, \i n @ m\={u}r}

\textipa{\uhalb \aganz}

\textipa{ʉ}

\end{document}

It would be slightly more complicated if you need to strike out an italic character.