Is anyone else having this issue? According to the documentation and the examples, the following MWE should show a grid, but it doesn't.
\documentclass{article}
\usepackage[absolute,showboxes]{textpos}
\begin{document}
\TPShowGrid{4}{4}
\end{document}
Edit: I copy and pasted David's code into a blank file in my Overleaf project and it did not work. This is peculiar.

