JabRef 5.0-dev--snapshot--2018-07-12--master--dd9b22911 Windows 7 6.1 amd64 Java 1.8.0_172 - [ ] I have tested the latest master version from http://builds.jabref.org/master/ and the problem persists please see the image, I could not press ?? and ??, I could however, copy paste the information about the version etc. 
JabRef 5.0-dev--snapshot--2018-07-12--master--dd9b22911
Windows 7 6.1 amd64
Java 1.8.0_172
please see the image, I could not press ?? and ??, I could however, copy paste the information about the version etc.