oh so yeah I discovered several issues then with NHSE (or it's me not using the tool properly?)
1. It place custom designs on the floor as if they had a transparent pixel, this mean that custom designs on top of a normal path will conform to the shape of that path and not take the entirety of the square
Easy fix, editing in game all custom designs one by one by changing a pixel back and forth fix this
2. it place items as inactivated as in some lights and vitrine are placed turned off instead of on as it is on the actual DA
Same for bubble generators, metronome etc...
Have to reach each of them to change their state.
Interesting issue is that these items when you place them in game are placed already by default activated so it's weird that NHSE place them turned off
3. the one thing that made me think the previous DA backup was out of date is that it seem to miss items placed on top of other items as in a vitrine with something inside, only the vitrine is spawned, a scaffold with an item on top of it, only the scaffold is spawned etc
I wonder if I missed a step in the process
Well thank you anyway, I'll fix these issues ingame, I can at least do that haha
Edit :
I tried some other DA so I had to do a backup of my fixed version and I can report that #1 is still a bug it seems from NHSE
As for #2 my restore of my own backup kept things activated so it seems the tool you use to export DA might export things turned off?
And lastly #3 is just a big mistake from me
I didn't export layer 2 of items so when I did that, everything that was supposedly on top of other things magically appeared, false alarm from my own error!