Was trying to load ammo onto the warmaster titan from the titan assembly bunker control. Loadout was 2 chainswords 2 gatling blasters and 1 apocalypse missile launcher.

Error running event WH40k-Titans:on_tick (ID0)
--WH40k-Titans__/script/assemble.lua:795: attempt to perform arithmetic on field 'inventory' (a nil value)
stack traceback:
--WH40k-Titans__/script/assemble.lua:795: in function '?'
--WH40k-Titans__/script/assemble.lua:914: in function 'process_an_assembler'
--WH40k-Titans__/script/assemble.lua:965: in function 'handler'
core/lualib/event_handler.lua47: in function
core/lualib/event_handler.lua:45>

I have also been getting this error on trying to load ammo. I have a few other mods, but the major one is K2 (Space Age edition). There is a similar error that occurs on trying to unload an entity at the assembly bunker, but the error occurs on line 840 and it says its because its trying to insert a non-positive value despite there being a greater than zero check immediately before it. Both errors only occur when the entity enters the bunker area. Passively being in load/unload mode doesn't trigger the error.