Hello.

Some textures of my map are not visible in game:

Radiant:


WAW:


This error can probably be corrected easily, but I have no idea of how to do it (it's my first map).

Thank you in advance for your help!

Caulk never gets loaded in-game, thats why its good to caulk unseen faces. And if you are using patches, remember to lightmap them by pressing CTRL + L, then selecting patch, pressing S and hitting either LMAP or natural. Then twice CTRL + L and done

Thank you, it worked... partially. It's OK for the patches I've shown on the right pic even if I can see the texture only if it set on natural.

But it don't work for the single face textured brushes of the left pic. I tried natural and lmap, also changed the color of the lightmap. Nothing happened.

Thank you, it worked... partially. It's OK for the patches I've shown on the right pic even if I can see the texture only if it set on natural.

But it don't work for the single face textured brushes of the left pic. I tried natural and lmap, also changed the color of the lightmap. Nothing happened.

Is there brushes colliding? Sometimes, when brush overlays another, both of them become invisible, same with patches

If by colliding you mean something like this (I prefer posting a picture to prevent any mistake due to a bad comprehension):
, there is no texture colliding. I solved the problem by deleting these bad brushes, and replaced them with a copy of other brushes I've used to make this wall (but all of these brushes results of a single brush clipped with CSG Subtract, so all of them should have the same properties... I suppose.