-export/export/latex/uk-babel-date-missing-chars-with-ascii_(pdf4|dvi3)_texF
-# the "dvi3" tests for these pass, but have wrong output.
-export/doc/uk/Intro_pdf4_texF
-export/examples/uk/Welcome_pdf4_texF
+export/export/latex/languages/uk-babel-date-missing-chars-with-ascii_dvi3_texF
+
+# Babel with non-TeX fonts fails for some supported languages
+# Lithuanian: L7x font encoding also set with LuaTeX and non-TeX fonts
+# (error but output OK)
+export/export/latex/languages/supported-languages_babel_non-tex_(dvi3|pdf5)_systemF
+
+# Babel-French fails with Xe/LuaTeX and TeX fonts
+# LaTeX Error: Command \at already defined. (and a lot more)
+export/export/latex/languages/supported-languages_(dvi|pdf).*_texF
+export/export/latex/languages/supported-languages_babel_(dvi|pdf).*_texF
+
+# Babel + XeTeX and system fonts fails due to a babel bug:
+# https://www.mail-archive.com/search?l=mid&q=20190831012945.zl76dbstyijfqgdh%40boogie
+# The error is the following, although remoing the referenced language just leads
+# to a different error:
+#
+# ! File ended while scanning use of \bbl@inireader.
+# <inserted text>
+# \par
+# l.3 \input{babel-german-switzerland}
+# I suspect you have forgotten a `}', causing me
+export/export/latex/languages/supported-languages_babel_non-tex_pdf4_systemF
+
+
+# Polyglossia + LuaTeX issue
+# Reported upstream here:
+# https://github.com/reutenauer/polyglossia/issues/163
+# These tests were broken at 3374b854
+# See discussion here:
+# https://www.mail-archive.com/search?l=mid&q=1478004223.2367.5.camel%40lyx.org
+#export/doc/(sk|nb)/Intro_(dvi3|pdf5)_systemF
+# some Polyglossia languages work only with XeTeX and fail with LuaTeX:
+# * The font "NotoSansEthiopic" cannot be found.
+# * sanskrit: ! Undefined control sequence.
+# l.53 \newXeTeXintercharclass
+# * RTL-languages: ! Undefined control sequence.
+# \setLR ->\@RTLfalse \luatexpardir
+export/export/latex/languages/supported-languages_polyglossia_XeTeX_(dvi3|pdf5)_systemF
+