(2.1.1) Floor and Ceiling textures not showing

[Kappes Buur]

I tried this with every version back to 63a, with the same result.

The floor and ceiling textures are of size 64x64, which I placed between TX_START and TX_END. And, unfortunately, I only get the familiar checker board pattern for missing textures.

[Enjay]

The ones that aren't showing are hi-colour images. Reduce them to 256 colours and they work. They work without being reduced in GZdoom.

[Kappes Buur]

With that in mind, I just checked it with GZDoom. Here, too, do these textures not show
in Software Renderer mode. So it is just a fortuitous byproduct of rendering in OpenGL.