There were some updates recently that caused certain types of paths to behave differently when they are closed paths: David M. said: ...after some more testing I should clarify that it seems that the issue is actually the type of polygon used (open/closed). LDL now breaks when closed polygons are present (where the end point is the same as the start point of the polygon). It draws a phantom line to the upper left map corner. So, to avoid this for LDL in the future be sure to never connect the start and end points of any DL path. Fortunately, since you are a Pro user, you do not need to completely redraw your lines. David M wrote a very useful script which will fix all your paths with a single command.
