1171.615 Error MainLoop.cpp:1035: Exception at tick 126: Error while running event fws::on_tick (ID 0)
Error while running event ammo-loader::script_raised_built (ID 77)
ammo-loader/control.lua:155: attempt to index local 'ent' (a nil value)
stack traceback:
fws/control.lua:580: in function 'GrowTree'
fws/control.lua:354: in function <fws/control.lua:344>
1171.615 Error ServerMultiplayerManager.cpp:96: MultiplayerManager failed: "Error while running event fws::on_tick (ID 0)
Error while running event ammo-loader::script_raised_built (ID 77)
ammo-loader/control.lua:155: attempt to index local 'ent' (a nil value)
stack traceback:
fws/control.lua:580: in function 'GrowTree'
fws/control.lua:354: in function <fws/control.lua:344>"

It provides that bug upon loading into a new world

Should be fixed in the next version. Have a bit more to update so probably won't be available until Tuesday at least.