I have the following source code. When I compile it in Emacs+AUCTex I have the expected result, but when I compile it in ShareLaTeX there are huge gaps between paragraphs as ,I can only guess, ShareLaTeX tries to occupy the whole column space. Why is this happening? How can I fix it? I suspect that it might be a bug.
\documentclass[11pt]{article}
\usepackage
[
top=0.7in,
bottom=1.2in,
left=0.8in,
right=0.8in,
]{geometry}
\usepackage{parskip}
\setlength{\parindent}{0cm}
\usepackage{amsmath}
\usepackage{unicode-math}
\usepackage{fontspec}
\usepackage[greek,english]{babel}
\setmainfont
[
Ligatures=TeX,
Extension=.otf,
UprightFont=*,
BoldFont=*Bold,
ItalicFont=*It,
BoldItalicFont=*BoldIt,
Mapping=tex-text
]{GFSArtemisia}
\setsansfont[Mapping=tex-text]{GFSArtemisia.otf}
\setmathfont{latinmodern-math.otf}
\setmathfont[range=\varnothing]{Asana-Math.otf}
\setmathfont[range=\int]{latinmodern-math.otf}
\usepackage{multicol}
\usepackage{lipsum}
\title{Name}
\begin{document}
\maketitle
\begin{abstract}
\lipsum[1]
\end{abstract}
\begin{multicols*}{2}
\section{Section}
\lipsum[1-2]
Sample text here!
\end{multicols*}
\newpage
\end{document}
In Emacs

In ShareLaTeX

**File List**on each system (see Which package version am I using?). – Werner Feb 11 '15 at 00:05\listfilesto the preamble, recompile, click on Logs and output files, View Raw Logs, find**File List**. – Werner Feb 11 '15 at 00:40\vfill. (Also, I removed the [tag:emacs] and [tag:auctex] tags; the editor has nothing to do with the problem here.) – Sean Allred Mar 22 '15 at 19:37