Fixed #8890

core/src/mindustry/entities/EntityGroup.java

@@ -229,6 +229,12 @@ public class EntityGroup<T extends Entityc> implements Iterable<T>{
         if(type == null) throw new RuntimeException("Cannot remove a null entity!");
         if(position != -1 && position < array.size){
 
+            //rarely the entity index is wrong; fallback to slow implementation
+            if(array.items[position] != type){
+                remove(type);
+                return;
+            }
+
             //swap head with current
             if(array.size > 1){
                 var head = array.items[array.size - 1];