There's an untranslatable string in Calc/Chart: right-click on a chart in Calc - Export as image - observe the untranslated dialog title: "Save as Image" Has been like this since 4.0, still present in 5.2.3.3 Old requests where the feature itself was added/modified are listed in "See Also".
Confirmed with version 5.2.3.3 x64 (UI language Portuguese) running under Windows 10 x64 (Portuguese)
On pc Debian x86-64 + French UI, with master sources updated today or with LO Debian package 5.2.3, I don't reproduce this.
This is coming from here: http://opengrok.libreoffice.org/xref/core/svx/source/core/graphichelper.cxx#220 aDialogHelper.SetTitle( "Save as Image" );
Gabor Kelemen committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=577ae613e0b97e5533b4b2de93422a25dca39517 tdf#103872 Localize "Export as image" window title It will be available in 5.4.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.