I found a small flaw in the placement of floats.
\placefigure[left]...
ended at the bottom of the page (before the footnotes), but on the next page the text began as if the figure was still there:
xxxxxxxxxxxxxxxx  flowing text
xxxxx figure xxxxx  flowing text
xxxxxxxxxxxxxxxx  flowing text
(some whitespace followed by footnotes)
...........................................pagebreak............
 (open space)         flowing text first line
second line of text starts normal at the left margin

Is this known behaviour?
Can it perhaps be massaged with parameter settings or is ConText here taking just somewhat oversized vertical space?

Hans van der Meer