It seems that no ones asked this before. I have an unwanted indent in the second line of the subsection title. I was wondering if anybody knows how to get rid of it. Near I provide a minimal example. Thanks in advance!
\documentclass[a4paper,14pt]{article}
\usepackage{cmap}
\usepackage[T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[english,portuguese, main=russian]{babel}
\usepackage{blindtext}
\usepackage{titlesec}
\usepackage[toc, page]{appendix}
\begin{document}
\section{Section One}
\subsection{The heading of this subsection is too long to fit in just one line. The indent after the first line is unwanted}
\end{document}

titleseconce had a bug that removed the numbering. An update should fix that. Check the log file wherearticle.clsis being loaded from. You might have a changed version. – Johannes_B Mar 16 '17 at 17:15tlmgrpackage manager. – Анастасия Кузнецова Apr 09 '17 at 13:41