Michael wrote:
Let's say I've imported my colleague's article, which was handwritten in
plain latex and WinEdt without using LyX.
The original format was readable and editable by a human-being, as below:
--------------------------
blah blah blah
\begin{align}
blah blah blah
\end{align}
blah blah blah
--------------------------
After I imported into LyX and I do some editing, and then export it out to
Plain Latex,
then it reads
----------------------------
blah blah blah\begin{align}blah blah blah\end{align}blah blah blah
----------------------------
This annoying behaviour is a known problem, see LyX's bug 1521:
http://bugzilla.lyx.org/show_bug.cgi?id=1521
regards Uwe