\starttext

% \enabletrackers[mixedcolumns.trace*]

\showframe

% \setupmixedcolumns[splitmethod=fixed]    % works as expected (4000 criterium)
% \setupmixedcolumns[splitmethod=more]   % works as expected (4000 criterium, larger test too)
% \setupmixedcolumns[splitmethod=auto]   % works as expected (zero criterium, larger test too)
% \setupmixedcolumns[splitmethod=none]

\startmixedcolumns

\dorecurse{30}{
    \section{Test #1a}
    \strut test #1.1\par
    \strut test #1.2\par
    \section{Test #1b}
    \strut test #1.1\par
}

\stopmixedcolumns

\stoptext
