The default horizontal end position of a cre—scen—do line depends on whether there is an immediate dynamic before the line. The width of the immediate dynamic determines the end position of the line. This is probably related to the problem I mentioned in this earlier topic about the end of the line intersecting with the immediate dynamic after it. As I said in the earlier topic, the end x value of the line is not adjustable in engrave mode, despite the fact that there is a property for it.
Also, editing the start position of the line in engrave mode also shifts the end position by the same amount.
My suspicion is that inadvertently an x start value of the line is currently being used instead of an x end value when it is displayed. Fixing this would solve all problems I mentioned in these 2 topics.