Couple of things.
When mode editing I keep trying to add to existing object with no success. For example I create some text and want to add lines to make it “stencil” like so the inner shape doesn’t fall out. So far I have been unable to do it in lightburn
Is there no way to start lines already in a splinenor polyline mode?
If the object is a “built in” type, like text, rectangle, or ellipse, they aren’t node editable unless you use the “Convert to Path” command on them first. Would that be the issue?