UiKit: Unset of UI Document from UiLoader leads to a crash

[eprikazchikov]

Description

Unset of UI Document from UiLoader leads to a crash

Prerequisites

Open the Editor and any project.

Steps to Reproduce

1. Create UI Document asset
2. Create UiLoader Actor on the scene
3. Assign UI Document
4. Unset UI Document

Expected behavior:

4. Document removed and it's widgets

Actual behavior:

4. Application crashed

Reproducibility:

100%

Versions

2025.2

Additional Information

n/a