Dear gang, The appears to be something wrong with the sidebar and marginrule mechanisms. MWE: ============== % ConTeXt ver: 2023.09.26 18:19 LMTX \setupmarginrule[1][rulecolor=darkred] \definesidebar[Sidebar][rulethickness=0.28pt,distance=3pt,rulecolor=darkgreen] \setupsidebar[rulecolor=darkgreen] \starttext \startmarginrule[1] \input ward \stopmarginrule \blank \startsidebar[Sidebar] \input zapf \stopsidebar \stoptext ============== In the output, either i) the rules do not appear at all (most attempts); or ii) the rules appear for a split-second then disappear (using sumatrapdf as the viewer, so the pdf updates on the fly). Is is a bug? A second question: Is either mechanism preferable over the other? That is: In LMTX, what is the best mechanism to use? Thank you in advance for any guidance. Best wishes -- Idris Samawi Hamid, Professor Department of Philosophy Colorado State University Fort Collins, CO 80523