Hi,
when using the itemize environment snippet the produced code is
\begin{itemize}
item
\end{itemize}
missing the backslash in front of ‘item’.
To correct, used the following begin{}-end{}.sublime-snippet and place it in Preferences/LaTeX
<snippet>
<content><![CDATA[\\begin{${1:env}}
${1/(enumerate|itemize|list)|(description)|.*/(?1:\\item )(?2:\\item)/}$0
\\end{${1:env}}]]></content>
<tabTrigger>begin</tabTrigger>
<scope>text.tex.latex</scope>
<description>\begin{}…\end{}</description>
</snippet>
The issue is present in ST2 and ST3. To fix the problem edit Preferences/LaTeX/begin{}-end{}.sublime-snippet . For ST3, you have to create this file as it is now shipped in a zipped package.
Problem: the Backslash in front of item is not escaped in the Mac OS X shipped version, neither in ST2 nor in the zipped package of ST3 (3065).
best
kdw