[HELP] YMAP being replaced by default GTA Map

Hi, So I’ve spent all day creating a small training area for my fire department in my server. I’ve gone and moved houses and stuff under the map to create more room and also removed some clutter around the area but when i load the YMAP back into my server all the stuff I’ve moved/changed has reappeared on top of all the stuff I added.

MAP Link: cfa-training-grounds.zip (197.9 KB)

I don’t really understand ymaps, but maybe this will help you.

Thanks, for the help @ChristopherM but I’m looking for a solution to stop the original buildings that I have moved from spawning back into the map. I’ve tried multiple methods that I thought would work but sadly didn’t.