I had to edit the mesh in the following places: adding ladder to mid, allowing bots to jump up the boxes to A, allowing bots to drop down the window on B and also the hole next to B, allowing bot to jump down the drop in CT. I don't think I'm gonna use nav generate again. And do you by the slope the one in the Z area? Also did the radar work properly?

definitely add more screenshots.
I like that A long/short crossing. Great bench and trash can on B! :)

concerning the nav mesh: T-Mid stair platform is missing and some areas are inside the wall at Mid-B from T side, so in case this mesh is entirely generated and you haven't edited it, just nav_generate again.
bots have trouble with the slope around CT to B short: add nav_pricise to the slope area (which is also useful for narrow doorways etc.), maybe remove the small areas going off the slope