[NTG-context] Overwritten text with newcolumnsets

Hi, I am trying to get a two-column document with figures. After failing with \startcolumns, I tried with newcolumnsets. But the most basic example (see below) is not working properly. The text at the bottom of the first page gets overwritten by the first two line of the column. I think this problem was also reported on Sept 22, 2016 by Jose Luis Arellano on this mailing-list. Do you confirm the problem? Any way/plan to fix it? Thanks so much for your help. Best, Charles % start of example \usemodule[newcolumnsets] \definecolumnset[example][n=2] \starttext \startcolumnset[example] \dorecurse{12}{\input knuth \par} \stopcolumnset \stoptext % end of example