JabRef 5.0--2020-03-06--2e6f433 Windows 10 10.0 amd64 Java 13.0.2 <!-- IMPORTANT NOTE -> <!-- Please always test if the bug is still reproducible in the latest development version. We are constantly improving JabRef and some bugs may already be fixed. You can download the development version at: http://builds.jabref.org/master/ Please make a backup of your library before you try out this version. If you already use a development version, ensure that you use the latest one. --> - [ ] I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists <!-- Add a clear and concise description of what the bug is. --> Steps to reproduce the behaviour: 1. Define a custom Preview style in `Entry Preview` 2. Right-click on `Entry Preview` and hit `Print Entry Preview` 3. The created PDF file is empty