#164 guard + smoking-gun receipt: the beam draw walk (DrawWeaponBeams) filtered by CLASS only -- a destroyed emitter with beamFlag still armed kept drawing, and a destroyed ARM's mount segment is gone so the muzzle falls back to the mech ORIGIN: Conn Man's feet-anchored rudder-riding hanging beam (his MS-FIREFLY log: every destruction all night was an ERPPC+ERSLaser arm pair). The walk now refuses destroyed weapons (dual-cell read, gotcha 22 accessors) and prints '[beam] DESTROYED-BUT-ON' when it catches an armed beamFlag on a dead weapon -- one field recurrence names the upstream stick; the visual cannot render regardless.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

game/reconstructed/mech4.cpp

@@ -9065,6 +9065,32 @@ void
 			em->ReplicantServiceBeam(ttl1);
 		if (!em->BeamOn())
 			continue;
+		// #164 (Conn Man's hanging beam, legs-anchored, until-death): a
+		// DESTROYED emitter must never draw a beam.  The sim gate resets the
+		// firing state per tick while the weapon executes, but this draw walk
+		// reads the raw roster with no destroyed check -- so any path that
+		// leaves beamFlag armed on a dead weapon (his log: the ERPPC+ERSLaser
+		// arm pairs died all night; a destroyed arm's segment is gone, so the
+		// muzzle falls back to the mech ORIGIN = the legs, riding the rudder)
+		// draws a feet-anchored beam forever.  Clear it, log the catch loudly
+		// (this receipt firing = the upstream stick exists and names itself),
+		// and skip.  Dual-cell read per gotcha 22.
+		if (em->SimulationStateCell() == 1 || em->StatusAlarmLevel() == 1)
+		{
+			// The receipt is the point: it firing means beamFlag stayed armed
+			// on a dead weapon -- the upstream stick exists and names itself.
+			// Capped: the draw walk runs per frame.
+			static int s_stuckPrints = 0;
+			if (em->BeamOn() && s_stuckPrints < 20)
+			{
+				++s_stuckPrints;
+				DEBUG_STREAM << "[beam] DESTROYED-BUT-ON: '"
+					<< (em->GetName() ? em->GetName() : "?")
+					<< "' beamFlag armed on a dead weapon -- draw refused (#164)\n"
+					<< std::flush;
+			}
+			continue;
+		}
 		Point3D mz;
 		em->MuzzlePoint(mz);						// LIVE muzzle (tracks the gun)
 		// MOUNT FALLBACK: when the weapon's mount segment doesn't