as you can see in these pictures it has the purple box, showing it should be much larger however it stops abruptly, this is a large farm design and it may have problems because of the size, I have tried loading it on both a server and singleplayer world and it happens on both, I have tried getting the schematic again and it seems not to work. I even changed the Mods render distance and still does not work, it is a perfectly straight edge which leads me to believe that it was not saved properly. This happens on multiple different schematics of a similar size.
any help would be appreciated
cheers,
Laurence

yeah similarly, I've been having the same problem - its really annoying, and I haven't been able to find a fix yet :/
one thing tho, for that missing part, you might be able to do it in chunks, as I'm trying to make a giant farm like that too, so thats what im gonna do