Large crusher leaves behind tile surfaces after being destroyed

Issue description

The large crusher leaves behind its surface tile squares after being destroyed. I used Unity to destroy them and can reproduce the issue.

Reproduction steps

Build large crusher.
Destroy large crusher with Unity.
Small surface squares are left behind

Game version and build number

v0.8.2c b559

Operating system

Windows

Attachments

crusher footprint remains.save

If you save and then load this file, do they stay?

Yes, it's persistent across saves.

You should attach a save file.

Right! Should have done that to start, thanks.

Save file attached to issue.