Faulty Map Loading

So yeah, issue with the maps in-game.  For some reason, when I create a new map, or pick-block an old one, it updates/creates the map but at the wrong y-level, cutting off a good darn portion of everything up to said y-level.  That being said, I can see inside all of my buildings, including the upper floor of my house, as if there was no roof even on it when using a map.    So yeah, this also happen on all the other buildings, whether they have slab, stair, of whole block roofs. So yeah, a little help please?  It also cut off the walls to either side of my walkway on top of my security wall.  So, with my mother nagging up a storm about her life, and with me not having my headset with which to block her out, I have one thing to say......  I AM SURROUNDED BY OLD PEOPLE!!!!!!!Unable to render embedded object: File (  So, please help, it would mean a lot to have this little map issue fixed by 1.13 Pre-Release 7.  Thanks, Rockatoa, Brickticks out) not found.