Placing single pipe parts works fine, but when they are connected together, the game crashes.
Perhaps this is because single pipes and connected pipes are different entities in that mod.
Here is the error message:
Error while running event quantum-fabricator::on_tick (ID 0)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__quantum-fabricator/scripts/tracking_utils.lua:66: in function 'add_request'
quantum-fabricator/scripts/tracking_utils.lua:40: in function 'create_tracked_request'
quantum-fabricator/scripts/tracking_utils.lua:187: in function <quantum-fabricator/scripts/tracking_utils.lua:181>
(...tail calls...)
flib/table.lua:294: in function 'for_n_of'
quantum-fabricator/scripts/tracking_utils.lua:86: in function 'on_tick_update_requests'
quantum-fabricator/scripts/events.lua:384: in function <quantum-fabricator/scripts/events.lua:382>