Hi Hans, 

As it was reported by Fabrice Couvreur in another thread, there is a bug with placing floats on the right in 

	ConTeXt  ver: 2015.09.01 11:10 MKIV beta  fmt: 2015.9.3 

A minimal example follows, with the output attached.

%%%% begin bug-placefigure.tex
\starttext

\startplacefigure[location={right}]
	\externalfigure[cow.jpg][width=5cm]
\stopplacefigure
Look here: this picture is not placed correctly on the right. What is wrong with placing the picture on the right

\startplacefigure[location={left}]
	\externalfigure[cow.jpg][width=5cm]
\stopplacefigure
Look here: this picture is placed correctly on the left. What is wrong with placing the picture on the right?

\stoptext

%%%% end bug-placefigure.tex

Best regards: OK