Srb2 doom builder textures not showing

Why can't I see them in doombuilder yet they load fine when I play a regular or modded game? the textures are GFZVCRCK GFZVINES and GFZCRACK. I can enter them on a linedef or wall, but when I do, it says Unknown Texture and it doesn't show the image of said texture. but when I load up the game they're there! Is there a problem with the Cfg file?

That happens because SRB2DB doesn't support the new texture system. It doesn't recognize any of the composite textures that are made up of multiple images. You can circumvent the problem by loading this WAD as an additional resource (it contains single-image versions of all the composite textures) or, if you prefer, you can make yourself a copy of srb2.srb, add these additional textures to it, and use it as an IWAD for SRB2DB.