help with my sloped sector problem!

Hi friends, I'm making a wad that has slopes, the slopes work well in Gzdoom builder but when it comes to testing it with zandronum, it doesn't just come out is raised soil, does anyone know why that happens? the map is in Zandronum Doom 2 UDMF Format

Zandronum ≠ GZDoom
Both engines have settled on developing different aspects of the game.
Zandronum may be Modern and beautiful, yet has only some compatibility with GZDOOM features.

That being said, slopes done with 181:Plane Align will work.

Yes, what he said! I also might add that The Ultimate Doom Builder is the newer updated version of GZDOOM Builder.