Was jumping into sandbox to test some mod stuff, and your mod loaded okay... until I hit research all technologies, the game froze for some seconds, and then error'd:
Error while running event level::on_gui_click (ID 1)
The mod Warptorio2 Expansion 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:
warptorio2_expansion/control.lua:2536: in function <warptorio2_expansion/control.lua:2532>
stack traceback:
[C]: in function 'index'
__warptorio2_expansion/control.lua:2536: in function <warptorio2_expansion/control.lua:2532>
stack traceback:
...Data/Roaming/Factorio/temp/currently-playing/sandbox.lua:71: in function 'handler'
core/lualib/event_handler.lua:44: in function <core/lualib/event_handler.lua:42>
stack traceback:
[C]: in function 'research_all_technologies'
...Data/Roaming/Factorio/temp/currently-playing/sandbox.lua:71: in function 'handler'
core/lualib/event_handler.lua:44: in function <core/lualib/event_handler.lua:42>
Not a big deal, I'll disable it for now since I'm doing some mod writing.
