wrapfig: cannot restart from beginning, vspace doesn't work

Question

Problems with wrapfig seems to never end.

I want to put a figure on the left and write text on the right. This text doesn't cover all the figure height.

Then I do a vspace and starts to write AFTER the figure fully ended. I expect the text to start from the left margin of the page, instead it is placed just like the figure is still there, with a big space from the left margin of the page. It seems like latex first calculate the text position, and then "vspace" it, instead of doing the viceversa.

MWE:

\documentclass{article}
\usepackage{mwe} % for blindtext and example-image-a in example
\usepackage{wrapfig}
\usepackage{blindtext}
\begin{document}

\begin{wrapfigure}{l}{0.5\textwidth}
\centering
\includegraphics[height=150pt,width=0.5\textwidth]{example-image-a}
\caption{A caption}
\end{wrapfigure}

Random text Random text Random text Random text Random text Random text Random text Random text Random text Random text Random text Random 

\vspace{150pt}

\blindtext %this should start from the beginning of the page

\end{document}

Picture:

Answer 1

Just use the optional argument for the environment:

\begin{wrapfigure}[5]{l}{0.5\textwidth}

Answer 2

I solved using WFclear as suggested here by John Kormylo

WFclear is an undocumented function that ends a wrapfig

\documentclass{article}
\usepackage{mwe} % for blindtext and example-image-a in example
\usepackage{wrapfig}
\usepackage{blindtext}
\begin{document}

\begin{wrapfigure}{l}{0.5\textwidth}
\centering
\includegraphics[height=150pt,width=0.5\textwidth]{example-image-a}
\caption{A caption}
\end{wrapfigure}

Random text Random text Random text Random text Random text Random text Random text Random text Random text Random text Random text Random 

\vspace{150pt}
\WFclear 
\blindtext %this should start from the beginning of the page

\end{document}