JabRef 4.2-dev--snapshot--2018-03-13--master--90c7afa1c
Linux 4.13.0-36-generic amd64
Java 1.8.0_161

Steps to reproduce:

1. Select Options / Preferences / Entry preview

2. Choose a "Current preview" and move it to the right pane

3. The "preview" pane at the bottom does not show the formatting of the selected preview style. It always shows the same, namely:

\bibtextype\begin{bibtexkey} (\bibtexkey)\end{bibtexkey}

\begin{author} \format[Authors(LastFirst,Initials,Semicolon,Amp),HTMLChars]{\author}
\end{author}
\begin{editor} \format[Authors(LastFirst,Initials,Semicolon,Amp),HTMLChars]{\editor} (\format[IfPlural(Eds.,Ed.)]{\editor})
\end{editor}
\begin{title} \format[HTMLChars]{\title} \end{title}

\begin{chapter} \format[HTMLChars]{\chapter}
\end{chapter}
\begin{journal} \format[HTMLChars]{\journal}, \end{journal}
\begin{booktitle} \format[HTMLChars]{\booktitle}, \end{booktitle}
\begin{school} \format[HTMLChars]{\school}, \end{school}
\begin{institution} \format[HTMLChars]{\institution}, \end{institution}
\begin{publisher} \format[HTMLChars]{\publisher}, \end{publisher}
\begin{year}\year\end{year}\begin{volume}, \volume\end{volume}\begin{pages}, \format[FormatPagesForHTML]{\pages} \end{pages}
\begin{abstract}

Abstract: \format[HTMLChars]{\abstract} \end{abstract}
\begin{review}

Review: \format[HTMLChars]{\review} \end{review}

4. pressing "test" always shows the same formatting, which is not the styling of the selelcted preview format, See screenshot below.

Paste your log details here.

Opening: /home/dom/Dropbox/Projects/HSSA/issue 5.2 rasayana issue/07 Sehnalova/paper/sehnalova.bib
Opening: /home/dom/Dropbox/localtexmf/bibtex/bib/biblio4-utf8.bib