Hi,
this unfortunately doesn't seem to work with the Nanobots: Early Bots mod (https://mods.factorio.com/mod/Nanobots).
Placing concrete by hand successfully covers ores though.
Any chance of getting this to work?
Only took a quick look at the lua code and it seems to be prepared for robots. Not sure if Nanobots just trigger a different event.
Thx & best regards!