Had this come up all of a sudden while playing with Space Exploration (idk if relevant) and the issue persisted after reloading.
I was in the process of deconstructing some reactor setups, but this was well after the Reactors themselves had been removed.
Also occurs after changing the Calculation type and re-enabling the vanilla reactor.
Playing on 1.1 btw
Notice
The mod Realistic Reactors (3.1.5) caused a non-recoverable error. Please report this error to the mod author.
Error while running event RealisticReactors::on_robot_pre_mined (ID 15) LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function'index'
__RealisticReactors/scripts/heat/math.lua:48: in function
'calculate_score'
RealisticReactors__/scripts/heat/math.lua:59: in function
RealisticReactors__/scripts/heat/math.lua:52>
(...tail calls...)
RealisticReactors/scripts/heat/math.lua:271: in function 'callback' RealisticReactors/scripts/heat/math.lua:211: in function
'neighbour_cells'
RealisticReactors/scripts/heat/math.lua:265: in function
'inside_linked_entities'
RealisticReactors/scripts/heat/math.lua:315: in function
'get_linked_entities'
RealisticReactors/scripts/heat/network.lua:307: in function
'split_heat_network_cell'
RealisticReactors/scripts/heat/network.lua:526: in function
'remove_entity_from_network_cell'
RealisticReactors/scripts/heat/network.lua:627: in function
'remove_heat_pipe'
RealisticReactors/scripts/events/destruct.lua:56: in function
'on_heatpipe_removed'
RealisticReactors/scripts/events/destruct.lua:119: in function
'entity'
_RealisticReactors__/control.lua:61: in function _RealisticReactors__/control.lua:59>
Confirm
Update: Shortening the time between Autosaves seems to have fixed it
