Skeletal Mesh Actor material not working when loading from pak

Hello all,

I am getting a very odd error and cannot see to figure out how to solve it:

Here is what I am doing:
I imported a character (tried several different one, all with the same error in the end) with materials and textures from a single fbx file.
I then packaged this into a pak file, which I then load in a game.

During the loading process, I get the following warning:
Warning: Incomplete material Material__87, missing Vertex Factory FGPUSkinPassthroughVertexFactory.

I am not sure if that is the reason for what I am seeing:
The character geometry loads fine but instead of seeing the material, I only see the default black/white checkerboard material/texture on the character.
I tried applying the material many different ways (blueprint, c++) but all with the same result: black/white checkerboard.
To be clear, the material does have “Used with Skeletal Mesh” checked.
And it is in the pak.
I can apply the material without problems to a static mesh.
It’s just that for skeletal meshes, it does not want to show.
The only thing I can think of that might be causing this is the warning stated about about the FGPUSkinPassthroughVertexFactory.
I am using 5.0.3-release and have not made any engine code modification, nor do I implement any kind of custom render or shader related code, i.e. no factories at all.
Any and all help would be much appreciated.

Cheers,
Sebastian

Hey, did you find a fix for that and can remember by any chance what it was?

Hey,
Sorry for the late replay.
If I remember correctly, I could not find a fix, but once I moved to a newer version the issue was fixed.
So seems like it was a bug that got fixed.

1 Like