minimal example:
\documentclass[oneside]{memoir}
\setstocksize{8.5in}{3.6666in}
\settrimmedsize{8.5in}{3.6666in}{*}
\settrims{0in}{0in}
\settypeblocksize{9.0in}{32pc}{*}
\setlrmarginsandblock{0.37in}{*}{1}
\setulmarginsandblock{0.1in}{*}{1}
\setheadfoot{0pt}{0pt}
\setheaderspaces{*}{0pt}{*}
\checkandfixthelayout
\clearpage\thispagestyle{empty}
\begin{document}
\begin{vplace}[1]
test
\end{vplace}
\end{document}
Best Answer
The environment, as you've discovered, is clearly broken. For now, you can work around it with
I'll contact Lars about the problem.