Upon rotating a yellow underground belt on the overworld map i got this error message:
Error while running event Factorissimo2::on_player_rotated_entity (ID 19)
LuaEntity doesn't contain key 1.
stack traceback:
Factorissimo2/control.lua:1060: in function <Factorissimo2/control.lua:1051>
Reloading the safe and rotating again causes it to appear again