Cannot import in embedded texture

### Platform

Avalonia-Android (ARM64)

### Describe the bug

Why can't I import embedded textures? I really need them.

### Reproducing steps

<img width="1600" height="720" alt="Image" src="https://github.com/user-attachments/assets/a329142c-45e6-46e3-a3c8-91c9d614ee3d" />

### Setup Details

Undertale Mod Tool Avalonia 0.9.2.0 Hotfix2 Android