Regina, This is not an intermittent failure and not the same error as your gerrit failures. Rather it is a yet another Windows HiDPI bug and a recent regression. Possibly when these tests were added a month ago: https://cgit.freedesktop.org/libreoffice/core/commit/?id=9ff954d5f780 tdf#127908 tdf#128193 Chart OOXML: Fix Custom Y axis title position You can make the build complete successfully by: Display Settings -> Scale and Layout -> 100% This is a recent regression, that I will try to bisect. Other examples of HiDPI Windows failures include: CppunitTest_sw_layoutwriter failing on Windows with HiDPI http://document-foundation-mail-archive.969070.n3.nabble.com/CppunitTest-sw-layoutwriter-failing-on-Windows-with-HiDPI-tp4266491.html CppunitTest_starmath_qa_cppunit Failing on Windows with HiDPI http://document-foundation-mail-archive.969070.n3.nabble.com/CppunitTest-starmath-qa-cppunit-Failing-on-Windows-with-HiDPI-screens-tp4261772.html -Luke Build log with Scale = 125%: [build CUT] chart2_export Chart2ImportTest::testAxisTitleRotationXLSX finished in: 536ms D:/core/chart2/qa/extras/chart2import.cxx:1577:Chart2ImportTest::testAxisTitlePositionDOCX equality assertion failed - Expected: 6378 - Actual : 6571 Chart2ImportTest::testTdf122765 finished in: 647ms D:/core/chart2/qa/extras/chart2import.cxx(1577) : error : Assertion Test name: Chart2ImportTest::testAxisTitlePositionDOCX equality assertion failed - Expected: 6378 - Actual : 6571 Failures !!! Run: 88 Failure total: 1 Failures: 1 Errors: 0 Chart2ExportTest::testAxisTitleRotationXLSX finished in: 560ms D:/core/chart2/qa/extras/chart2export.cxx:2037:Chart2ExportTest::testAxisTitlePositionDOCX assertion failed - Expression: nY > 0.384407 && nY < 0.384408 D:/core/chart2/qa/extras/chart2export.cxx(2037) : error : Assertion Test name: Chart2ExportTest::testAxisTitlePositionDOCX assertion failed - Expression: nY > 0.384407 && nY < 0.384408 Failures !!! Run: 110 Failure total: 1 Failures: 1 Errors: 0 Error: a unit test failed, please do one of: make CppunitTest_chart2_export