[NTG-context] An strange error with section and page

Hi, I have a long document [https://repo.or.cz/apunts-espa-matematiques.git/blob/HEAD:/ng-exercicis.conT...] which I migrated from MKIV to LMTX version of ConTeXt. As Wolfgang recommened. I migrated old syntax to new one and replace \page[yes] before each section to \setupheads[section][style={\bf \ssc}, alternative=margin, page=yes] but now after each section there is a new page. Why? I don't know. Can someone help me to see what happens? The source code is here [https://repo.or.cz/apunts-espa-matematiques.git] Thanks in advance, Xavier PS: Please CCme