Some flat cubes texture were disappeared after recreating a new texture with a previous texture

[DrageonDB]

What are you trying to do, and what do you expect to happen?

1. Open the previous project (Generic/Minecraft Model related)
2. Select all cubes
3. Then click "Create Texture" => "Box UV" checked, => "OK"

Expected Results: It should still have texture for all flat cubes (cubes as planes)

2023-12-28.22-13-24.mp4

What happens instead?

Some flat cubes (planes) texture were disappear

Model format in which the issue occurs

Generic Model

Blockbench variant

Program

Blockbench version

4.9.2

Operating System

Windows 11 22H2

Installed Blockbench plugins

No response