I am trying to create a wrapfigure that has two subfigures. Normally when I create subfigures, I use the following structure:
\begin{figure}[h]
\centering
\begin{subfigure}{.5/textwidth}
\includegraphics[width=\textwidth]{image1}
\caption{subfig a}
\label{figa}
\end{subfigure}
\begin{subfigure}{.5/textwidth}
\includegraphics[width=\textwidth]{image2}
\caption{subfig b}
\label{figb}
\end{subfigure}
\caption{figure}
\label{fig}
\end{figure}
I tried to use this in a wrapfigure environment, but it seems I cannot use subfigure inside wrapfigure. I then used some code from the example here, where I checked the first version of the edited answer, since I didn't want to use minipage. I came up with the following (I hardcopied some Lorem Ipsum because I had some problems with the lipsum package and didn't feel like trying to fix that first):
\documentclass[11pt]{report}
\usepackage[margin=2cm]{geometry}
\usepackage[demo]{graphicx}
\usepackage{wrapfig}
\usepackage{caption,subcaption}
\begin{document}
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus laoreet leo sagittis, porttitor nibh eu, aliquet nunc. Cras suscipit eget velit id tincidunt. Pellentesque quis interdum magna. Nullam urna leo, consectetur non ligula quis, tempor finibus mi. Aliquam rhoncus eleifend sollicitudin. Morbi id nulla malesuada, sollicitudin elit ac, tempus erat. Ut id tincidunt nisl, ac sagittis velit. Quisque vitae odio lobortis, tincidunt nisi ac, malesuada ligula. Sed ullamcorper sapien tincidunt interdum faucibus. Phasellus non orci semper est iaculis ornare. Morbi nulla purus, auctor non consequat ac, aliquet non turpis. Fusce vehicula orci nec orci dignissim, quis aliquam eros lacinia. Duis leo lorem, interdum a mauris sit amet, mollis auctor dolor.
\WFclear
\begin{wrapfigure}{r}{.5\textwidth}
\vspace*{\fill}
\centering\captionsetup[subfigure]{justification=centering}
\includegraphics[width=.5\textwidth]{image1}
\subcaption{subfigure a}
\label{fig:suba}\par\vfill
\includegraphics[width=.5\textwidth]{image2}
\subcaption{subfigure b}
\label{fig:subb}
\caption{figure}
\label{fig:figure}
\end{wrapfigure}
Suspendisse accumsan ex ac turpis vulputate, fermentum pharetra mauris eleifend. Duis dapibus dictum erat pellentesque vestibulum. Quisque eget vestibulum orci, sit amet mollis lorem. Curabitur porta quam quam, vel maximus nisl semper non. Pellentesque at lobortis magna. Nunc efficitur interdum leo. Morbi id ante tristique, rutrum justo nec, hendrerit erat. Fusce congue malesuada nibh, eu interdum sapien laoreet in. Vestibulum sed gravida augue. Donec sit amet ipsum non est lacinia feugiat. Etiam pretium mi eu odio scelerisque volutpat. Donec est nibh, convallis vitae enim vitae, tincidunt consequat lectus. Proin semper, lacus sed pretium venenatis, nisl odio posuere turpis, nec aliquet odio dui sed nisi. Nullam maximus pellentesque faucibus.
Etiam at eleifend enim. Duis tortor ipsum, blandit et odio sed, blandit fermentum mauris. Interdum et malesuada fames ac ante ipsum primis in faucibus. Proin maximus venenatis massa, quis euismod sapien luctus sed. Integer ornare massa at lectus iaculis malesuada. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Mauris et convallis ex. Phasellus erat magna, tristique non urna sed, accumsan vestibulum odio. In convallis urna non leo consequat, ut fringilla arcu tempus. Pellentesque vel efficitur ex. Morbi placerat eget metus non malesuada. Pellentesque sit amet imperdiet mi. Sed cursus fringilla imperdiet. Ut malesuada bibendum dui sed vulputate.
Sed finibus erat at pharetra malesuada. Nunc nec imperdiet ligula. Morbi ut pharetra enim. Cras mattis vehicula erat, eget dapibus tellus dignissim a. Praesent sed lectus a dolor interdum faucibus sed eu ex. Aenean vestibulum finibus dolor nec porta. Integer accumsan ligula commodo, lacinia nibh a, convallis quam. Maecenas non nibh metus. Curabitur pellentesque at magna eget imperdiet. Cras gravida nibh ac nulla blandit, ac pulvinar tortor faucibus. Integer ex urna, maximus in sem sit amet, maximus efficitur ante.
\end{document}
This gives me the following result:

It is almost what I want, but the only problem is that the caption of the whole figure is also a subcaption. How do I fix this? I would prefer to stay as close as possible to the structure that I regularly use, so I prefer not to use minipage and keep it as simple as possible.

\subcaptiongives warnings in the log. (2) have you tried wrapping the two images and their subcation in a minipage, leaving the figure caption outside? – daleif Feb 14 '19 at 11:23subfigure' insidewrapfigure' works fine. In the end, the problem was font-related and was caused by a misplaced \ in my original caption, that is not in the MWE. I failed to test this. The accepted answer by @Raaja below is a perfect solution to the second piece of code in my question. – Iris Feb 15 '19 at 10:27