Fixes creation of entangled singularities.

src/main/java/appeng/entity/SingularityEntity.java

@@ -27,6 +27,7 @@ import net.minecraft.entity.item.ItemEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.util.DamageSource;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.world.World;
 
@@ -38,6 +39,8 @@ import appeng.util.Platform;
 
 public final class SingularityEntity extends AEBaseItemEntity {
 
+    private static final ResourceLocation TAG_ENDER_PEARL = new ResourceLocation("forge:ender_pearls");
+
     public static EntityType<SingularityEntity> TYPE;
 
     private static int randTickSeed = 0;
@@ -84,6 +87,18 @@ public final class SingularityEntity extends AEBaseItemEntity {
                     if (!other.isEmpty()) {
                         boolean matches = false;
 
+                        if (materials.enderDust().isSameAs(other)) {
+                            matches = true;
+                        }
+
+                        // check... other name.
+                        if( !matches )
+                        {
+                            if (other.getItem().getTags().contains(TAG_ENDER_PEARL)) {
+                                matches = true;
+                            }
+                        }
+
                         if (matches) {
                             while (item.getCount() > 0 && other.getCount() > 0) {
                                 other.grow(-1);