Charlie Usually consecutive jump stitches should be combined, e.g. after deleting a design's part … but I remember this optimization having an exception for DST files (whose multiple jumps are considered as trim commands). You might remember our conversation one year back…
It looks like I need to introduce specific stitch types to allow a proper handling - hopefully resolving the issue you just mentioned. Maybe you're willing to provide a sample file by mail…?
In the meantime it might help to mark the "off" stitches using the rectangle selection tool and remove them.