817.636 Error MainLoop.cpp:1285: Exception at tick 33467: The mod Warptorio2 Expansion (1.1.65) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event warptorio2_expansion::on_research_finished (ID 18)
warptorio2_expansion/control.lua:2689: attempt to get length of local 'inv' (a nil value)
stack traceback:
warptorio2_expansion/control.lua:2689: in function <warptorio2_expansion/control.lua:2680>

Additional error from researching every tech to ensure stability:

33.849 Error MainLoop.cpp:1285: Exception at tick 4425: The mod Warptorio2 Expansion (1.1.65) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event warptorio2_expansion::on_research_finished (ID 18)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__warptorio2_expansion/control.lua:2683: in function <warptorio2_expansion/control.lua:2680>

Alright, looks like the second error is just from the lab research not being done / handled as part of the state transition from a fresh map to unlocking everything at once.