The now default Visual mode for sm formula editing is not correctly creating nodes when the "newline" element is typed into the command window with focus, or when selected from the 'Formats' panel of the Elements SB deck. Noted in either an inline OLE, or if opening the Math formula editor module. Returning to non-visual formula input restores function for sm layout using the "newline" element.
noted in see also bug 159600, => NEW
Entry of a <Return> while focused into the Visual editor does insert a sm 'newline' with a blank element holder, but only a single instance. The holder must be deleted to add additional newlines. But the "New Line" element from the SB Formats panel does nothing.
Trying to use "newline" from the elements sidebar in an inserted formula in Writer. "Newline" still not working in 24.2.2.1 Fresh install using Seperate Install GUI. Windows 11 64-bit.