Has anyone gotten Flowerstarry_sky's Double TNT Nether Tunnel Bore to work in 1.16?

I built it in my survival world using Litematica to verify I placed everything right. Litematica showed I had every block placed right, but when I started it up, the TNT duped, but didn't launch blowing the machine to bits.

It's hard to tell from the drivers seat, but I assume something went wrong with the flying machine in the back?

After it blew itself apart in my survival world I went back to the world download. The pre-existing machines worked just fine. But if I used Litematica to duplicate it the duplicates all failed.

Any idea how to build this thing without it blowing itself up?

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[https://www.youtube.com/watch?v=dnRQCaoF2Ts](https://www.youtube.com/watch?v=dnRQCaoF2Ts)

[https://www.mediafire.com/file/l63j5xaw7i1lin2/double\_height\_dunnel\_bore\_by\_Flowerstarry\_sky.zip/file](https://www.mediafire.com/file/l63j5xaw7i1lin2/double_height_dunnel_bore_by_Flowerstarry_sky.zip/file)