Export a black albedo map

[NaOH888]

Material Maker version:
Issues found both on official 1.4a and latest release from master

OS/device including version:
Windows 11

Issue description:
I'm trying to create a texture of a floor. It looks fine in the software, but the exported albedo map is totally black, while the normal map is good.

[Calinou]

Can you upload the .ptex file somewhere? You can include it in a ZIP archive that you drag-and-drop here.

[NailArukawi]

I have the same issue, the albedo picture is completely black. Im running linux with the aur materialmaker bin.

grass.ptex.zip

[jrdmellow]

I also experienced this issue, but I managed to find a work-around (see second image).

ORM and Normal map look fine, but the albedo is almost entirely black on export.

I was able to work around it by adding a Buffer node right before the Static PBR Material output.

Edit: The work-around is not consistent and seems to have nothing to do with the Buffer node. I had another file do this right after posting and adding the buffer did not work. After re-connecting a few nodes leading to the albedo output, it started working again. 🤷

Here's the project file without the work-around;
foliage_pine_branches.zip

I'm also running the Linux version (1_4a1), but I downloaded the package from itch.io.

OS: Fedora Linux 41 (Workstation Edition) x86_64
Kernel: Linux 6.12.5-200.fc41.x86_64
GPU: NVIDIA GeForce RTX 4070 Ti SUPER
Vulkan: 1.3.289 - NVIDIA [565.77]
OpenGL: 4.6.0 NVIDIA 565.77