Unrecoverable error when upgrading Nullius trains.

[mheidal]

Error log:
The mod Train Scaling (1.1.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event train-scaling::on_nth_tick(300)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function '__index'
train-scaling/control.lua:1836: in function 'try_decommission'
train-scaling/control.lua:2061: in function <train-scaling/control.lua:1984>

This occurred when I was deconstructing a Nullius locomotive 2 which was at a scaling train stop. I am not sure what other context would be helpful to you, I'd be glad to follow up on this.