This special case is discussed [[Columns#Floats_and_other_limitations_of_columns|here]].
==Floats on empty pages==
There’s a way to switch off page headings at full page floats:
<texcode>
\startplacefigure[title=Cow,location={page,high,header}]
\externalfigure[cow.pdf]
\stopplacefigure
</texcode>
==Protruding Floats in Double-Sided Documents==