unicode-math misplaces integral limits

[juliangilbey]

Hello! The minimal latex file:

\documentclass{article}

\usepackage{unicode-math}

\begin{document}
$\int_0^1 x$

$$\int_0^1 x$$
\end{document}

shows poor placing of the integral limits. It is far worse with the displayed integral sign. This may be an issue in the luatex engine rather than in unicode-math, though.

Version information from the run:

This is LuaTeX, Version 0.95.0 (TeX Live 2016/Debian) 
 restricted system commands enabled.

LaTeX2e <2016/03/31> patch level 3
Babel <3.9r> and hyphenation patterns for 1 language(s) loaded.

and from the file:

\ProvidesPackage{unicode-math}
  [2015/09/24 v0.8c Unicode maths in XeLaTeX and LuaLaTeX]

[khaledhosny]

Looks fine with XeTeX, so very likely a LuaTeX bug. Either way, unicode-math has no control over integral placement, that is in the hands of the fonts and the engines.

[wspr]

To add to @khaledhosny's comments, I think this is also related to the fonts in use. To confirm it's the engine and not unicode-math, I just tried a very plain XeTeX example (no LaTeX at all) with the same fonts with the following results: