Ultimate Doom Builder / Brutal Doom things not showing!

[zgoro]

Hi guys thank you in advance for your awesome support! :)

 

I am using Ultimate Doom Builder latest version and want to create a new map with Brutal Doom weapons , using DOOM2.wad and Brutaldoomv21.pk3 as resources:
https://i.imgur.com/P64cJER.png

 

I then get 247 errors:
https://pastebin.com/E78Lh30W

 

besides duplicate names, in fact there are many items/weapons missing from the editor (i.e. flamethrower, demonrunerevenant) without an entry.
https://i.imgur.com/sZcdQ07.png

 

When testing the map, if I spawn them from the ingame console they are working!
https://i.imgur.com/yowfhyc.png

 

Having tested Ultimate doom builder, Gzdoom2 and bugfix, the issue is the same.
I suppose it has to do with wrong loading those defs into the editor but I cannot identify how to solve this.