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<div class="moz-cite-prefix">Ulrike Fischer wrote:</div>
<blockquote type="cite" cite="mid:ujnndzz5luth.dlg@nililand.de">
<pre wrap="">
I can't reproduce your problem with the files you provided.
How do you compile? Which TeX-System do you have? And which viewer
do you use to view the pdf? Can you provide the pdf you get?
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<br>
For me (Windows 7 64-bit Enterprise, TeX Live 2020), PdfLaTeX does <i>not</i>
shew the problem whilst XeLaTeX does. The artifacts are more
visible in the TeXworks previewer than in Adobe Acrobat CC, but are
nonetheless visible in the latter.<br>
<br>
<i>Philip Taylor</i><br>
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