Could you advise?
Error while running on_init: Invalid surface name: Surface names must not be blank and must be unique.
stack traceback:
beltlayer/Editor.lua:28: in function 'on_init'
beltlayer/control.lua:6: in function <beltlayer/control.lua:5>

Try the new version. This could have happened if you uninstalled the mod and reinstalled it on the same map.

Hi, came across another one. Seems to be due to items on the ground on the other layer. It didn't got pick up when removing the belts. Tried to deconstruct it, and it broke my map.

Error while running event beltlayer::on_canceled_deconstruction (ID 21)
Unknown entity name: beltlayer-bpproxy-item-on-ground
stack traceback:
beltlayer/Blueprint.lua:135: in function 'surface_counterpart'
beltlayer/Blueprint.lua:479: in function 'on_canceled_deconstruction'
beltlayer/control.lua:73: in function <beltlayer/control.lua:72>

You should be able to pick up items spilled on the ground by right-clicking them or hovering over them with your mouse cursor and pushing 'F'. I should have the crash fixed in the next version, but marking items sitting in the underground for deconstruction will still not cause bots to retrieve them.