glass pipe and unit duct crash

[jehosula]

Platform: Windows

Build: 146 and 24567

Mod Version: latest

Issue: the game crashes when you exit either with a unit you are controlling.

Steps to reproduce: explained above

Save file: does not matter

Last log: does not matter

Crash logs: does not matter

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Place an X (no spaces) between the brackets to confirm that you have read the line below.

• I have searched the closed and open issues to make sure that this problem has not already been reported.
• I have updated to the latest release (https://github.com/sk7725/BetaMindy/releases) to make sure my issue has not been fixed.

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The original template is by Anuke, modified by sk7725.