Merge actors material slot missing

[Frenzygator]

Hi,

I’m trying to merge multiple actors in my scene into one merged actor to optimize performance.
When I merged the actors, everything with the same material has a unique material slot.
However, one actor within that merged actor has no slot assigned to it and has the standard unreal checker pattern assigned.

There is no way I currently know how to select those actors and assign a material to it.’

Here’s a picture to help make things clearer:

As you can see there’s no material slot for the floor that has the checker pattern material.

I’m using unreal engine 4.21.2

If there is a way to somehow fix this or if anyone might know what could be the cause of this, I would very much appreciate it.

[anonymous_user_96ab45d1]

I was having the same problem and got here while looking for an answer.

Meanwhile I got to solve it, at least in my case. So I will post what I did just in case it helps someone else.

What happened in my file is that I had duplicated a material so I had two identic materials. I wanted to keep it that way to have two groups separated. But it looks like Unreal has a problem when merging meshes with materials with the same characteristics. So what I did was modify one of the materials, merge the meshes and then bring the material back to how it was before.

[FX46]

Thank you, that helped me!

[Studio_Marvin_3D1 (Studio_Marvin_3D)]

Thank you! It solved my problem!

[Yuey_X]

amazing thank you