Structure Blocks hang indefinitely when exporting structures

[zombieclinic]

Bug Description

When using a Structure Block in BedrockOnLinux 2.0, attempting to export/save a structure does not complete.

After pressing the export/save button, the Structure Block stays on the loading screen indefinitely. No .mcstructure file is exported.

Expected Behavior

The Structure Block should export the selected structure normally and create the .mcstructure file.

Actual Behavior

The export process begins but never finishes. It remains stuck loading indefinitely.

Steps to Reproduce

1. Launch Minecraft Bedrock using BedrockOnLinux 2.0.
2. Enter a world.
3. Place a Structure Block.
4. Set it to Save mode.
5. Select an area to save.
6. Attempt to export/save the structure.
7. The Structure Block remains loading indefinitely and never exports the file.

Additional Information

• Importing/loading existing structures appears to work.
• The issue specifically occurs when attempting to export/save a structure.
• The game itself does not appear to crash; the export operation simply never completes.