diff --git a/core/assets/icons/icons.properties b/core/assets/icons/icons.properties
index af31c433fe..a0ef0e366e 100755
--- a/core/assets/icons/icons.properties
+++ b/core/assets/icons/icons.properties
@@ -572,3 +572,4 @@
 63112=scathe|block-scathe-ui
 63111=scathe-missile|unit-scathe-missile-ui
 63110=ravage|block-ravage-ui
+63109=underflow-duct|block-underflow-duct-ui
diff --git a/core/assets/logicids.dat b/core/assets/logicids.dat
index 2b63928fff..eeb8d385bd 100644
Binary files a/core/assets/logicids.dat and b/core/assets/logicids.dat differ
diff --git a/core/src/mindustry/entities/part/HaloPart.java b/core/src/mindustry/entities/part/HaloPart.java
index cd0029ba27..0f5f4cafd0 100644
--- a/core/src/mindustry/entities/part/HaloPart.java
+++ b/core/src/mindustry/entities/part/HaloPart.java
@@ -66,10 +66,14 @@ public class HaloPart extends DrawPart{
                 float pointRot = rot + shapeMoveRot * prog * sign + shapeRotation * sign + baseRot * sign;
 
                 if(tri){
-                    Drawf.tri(shapeX, shapeY, rad, triLen, pointRot);
+                    if(rad > 0.001 && triLen > 0.001){
+                        Drawf.tri(shapeX, shapeY, rad, triLen, pointRot);
+                    }
                 }else if(!hollow){
-                    Fill.poly(shapeX, shapeY, sides, rad, pointRot);
-                }else{
+                    if(rad > 0.001){
+                        Fill.poly(shapeX, shapeY, sides, rad, pointRot);
+                    }
+                }else if(str > 0.001){
                     Lines.stroke(str);
                     Lines.poly(shapeX, shapeY, sides, rad, pointRot);
                     Lines.stroke(1f);
diff --git a/core/src/mindustry/entities/part/ShapePart.java b/core/src/mindustry/entities/part/ShapePart.java
index 616ee83d88..7093c46b6b 100644
--- a/core/src/mindustry/entities/part/ShapePart.java
+++ b/core/src/mindustry/entities/part/ShapePart.java
@@ -56,7 +56,7 @@ public class ShapePart extends DrawPart{
                 }else{
                     Fill.circle(rx, ry, rad);
                 }
-            }else{
+            }else if(str > 0.0001f){
                 Lines.stroke(str);
                 if(!circle){
                     Lines.poly(rx, ry, sides, rad, moveRot * prog * sign + params.rotation - 90 * sign + rotation * sign + baseRot * sign);