FIXED
Issue with CF_BAI Detect module where units in Safe or Careless mode would generate an error and didn't check for visibility at all, has been SOLVED. PBO file has a new key name due to technical reasons so make sure you have updated the keys on your server.

MEMO FOR MISSION MAKERS
Units in Careless mode may still fire at enemies when distance between two opposite units is less than 2 meters and the "ignored" unit is within its cone of vision. Make sure you either add Hold Fire to your Careless units or make the ignored units captives instead. This seems to be a core Arma 3 issue that is just more visible when using CF_BAI and I can't fix that.