Fixed #12603

core/src/mindustry/entities/comp/PayloadComp.java

@@ -52,13 +52,11 @@ abstract class PayloadComp implements Posc, Rotc, Hitboxc, Unitc{
         }
 
         for(Payload pay : payloads){
-            //apparently BasedUser doesn't want this and several plugins use it
-            //if(pay instanceof BuildPayload build){
-            //    build.build.team = team;
-            //}
             pay.set(x, y, rotation);
             pay.update(self(), null);
         }
+        //remove dead payloads after they explode
+        payloads.removeAll(Payload::isDead);
     }
 
     @Override

core/src/mindustry/world/blocks/payloads/BuildPayload.java

@@ -38,6 +38,11 @@ public class BuildPayload implements Payload{
         build.dropped();
     }
 
+    @Override
+    public boolean isDead(){
+        return build.dead;
+    }
+
     @Override
     public boolean contentEquals(Payload other){
         return other instanceof BuildPayload bp && bp.block() == build.block;

core/src/mindustry/world/blocks/payloads/Payload.java

@@ -41,6 +41,11 @@ public interface Payload extends Position{
     /** update this payload inside a container unit or building. either can be null. */
     default void update(@Nullable Unit unitHolder, @Nullable Building buildingHolder){}
 
+    /** @return if this payload died for whatever reason (e.g. reactor/combustion generator exploding itself) */
+    default boolean isDead(){
+        return false;
+    }
+
     /** @return whether this payload was dumped. */
     default boolean dump(){
         return false;

core/src/mindustry/world/blocks/payloads/PayloadBlock.java

@@ -168,6 +168,9 @@ public class PayloadBlock extends Block{
         public void updateTile(){
             if(payload != null){
                 payload.update(null, this);
+                if(payload.isDead()){
+                    payload = null;
+                }
             }
         }
 

core/src/mindustry/world/blocks/payloads/PayloadConveyor.java

@@ -134,9 +134,14 @@ public class PayloadConveyor extends Block{
 
         @Override
         public void updateTile(){
+            if(item != null){
+                item.update(null, this);
+                if(item.isDead()){
+                    item = null;
+                }
+            }
 
             if(enabled){
-                if(item != null) item.update(null, this);
                 lastInterp = curInterp;
                 curInterp = fract();
                 //rollover skip

core/src/mindustry/world/blocks/payloads/PayloadUnloader.java

@@ -51,6 +51,9 @@ public class PayloadUnloader extends PayloadLoader{
         public void updateTile(){
             if(payload != null){
                 payload.update(null, this);
+                if(payload.isDead()){
+                    payload = null;
+                }
             }
             lastOutputPower = 0f;