Burn is the fire’s manners. An even burn moves in a straight line around the ash. Canoeing runs down one side. Tunneling eats the core and leaves a wrapper tube. Going out every two minutes is a burn problem too, not a personality trait of the smoker alone.
Leaf and construction both show up here. Volado helps the cigar stay lit. Ligero slows it down. A binder that will not combust fights the rest of the bunch. A wet cigar from a high humidity humidor will sulk. A dry one will race.
Touching up with a torch is normal. Constant surgery is a sign the cigar was made or stored badly. See draw for the related air problem.