You are never supposed to be this close to a non collaborative robot during operation. Never ever. There are a ton of safety standards around deadmanning operations if someone breaches the Arms workspace. At least here in the US they are enforced through OSHA.
If this keeps happening in South Korea, I would guess it is an issue with however their safety operations are enforced. But you should never even get close to a robot like this while it is running without a light wall or something ready to trip. Even then, most places have the cells fenced off.