I was testing a new setup, but after a few minutes of running, it just vanishes.

I'm not sure what causes it, but every time before it vanishes, there seems to be a lag spike, my CPU ramps up, then it's gone.

Interestingly enough, it's only visibly gone. But it's physical hitbox is still pressent. I can walk against it, and with sufficient force even move it. But I can not interact with it, or despawn it. Neither through the "return to workbench", nor in Map View via "clean up vehicle".

I'm not sure why this happens, but so far I experience it only on this particular creation. Here is the workshop link:

https://steamcommunity.com/sharedfiles/filedetails/?id=3151002445

To reprocude: Press the button on the Firebox, then wait.