fixes now for 1.16.3

src/main/java/com/simibubi/create/content/contraptions/components/fan/AirCurrent.java

@@ -63,14 +63,14 @@ public class AirCurrent {
 	public void tick() {
 		if (direction == null)
 			rebuild();
-		World world = source.getWorld();
+		World world = source.getAirCurrentWorld();
 		Direction facing = direction;
 		if (world != null && world.isRemote) {
 			float offset = pushing ? 0.5f : maxDistance + .5f;
-			Vector3d pos = VecHelper.getCenterOf(source.getPos())
+			Vector3d pos = VecHelper.getCenterOf(source.getAirCurrentPos())
 				.add(Vector3d.of(facing.getDirectionVec()).scale(offset));
 			if (world.rand.nextFloat() < AllConfigs.CLIENT.fanParticleDensity.get())
-				world.addParticle(new AirFlowParticleData(source.getPos()), pos.x, pos.y, pos.z, 0, 0, 0);
+				world.addParticle(new AirFlowParticleData(source.getAirCurrentPos()), pos.x, pos.y, pos.z, 0, 0, 0);
 		}
 
 		for (Iterator<Entity> iterator = caughtEntities.iterator(); iterator.hasNext();) {
@@ -81,7 +81,7 @@ public class AirCurrent {
 				continue;
 			}
 
-			Vector3d center = VecHelper.getCenterOf(source.getPos());
+			Vector3d center = VecHelper.getCenterOf(source.getAirCurrentPos());
 			Vector3i flow = (pushing ? facing : facing.getOpposite()).getDirectionVec();
 
 			float sneakModifier = entity.isSneaking() ? 4096f : 512f;
@@ -165,8 +165,8 @@ public class AirCurrent {
 		pushing = source.getAirFlowDirection() == direction;
 		maxDistance = source.getMaxDistance();
 
-		World world = source.getWorld();
-		BlockPos start = source.getPos();
+		World world = source.getAirCurrentWorld();
+		BlockPos start = source.getAirCurrentPos();
 		float max = this.maxDistance;
 		Direction facing = direction;
 		Vector3d directionVec = Vector3d.of(facing.getDirectionVec());
@@ -269,13 +269,13 @@ public class AirCurrent {
 
 	public void findEntities() {
 		caughtEntities.clear();
-		caughtEntities = source.getWorld()
+		caughtEntities = source.getAirCurrentWorld()
 			.getEntitiesWithinAABBExcludingEntity(null, bounds);
 	}
 
 	public void findAffectedHandlers() {
-		World world = source.getWorld();
-		BlockPos start = source.getPos();
+		World world = source.getAirCurrentWorld();
+		BlockPos start = source.getAirCurrentPos();
 		affectedItemHandlers.clear();
 		for (int i = 0; i < maxDistance + 1; i++) {
 			Type type = getSegmentAt(i);

src/main/java/com/simibubi/create/content/contraptions/components/fan/EncasedFanTileEntity.java

@@ -14,6 +14,11 @@ import net.minecraft.state.properties.BlockStateProperties;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.tileentity.TileEntityType;
 import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+
+import javax.annotation.Nullable;
+
 
 @MethodsReturnNonnullByDefault
 public class EncasedFanTileEntity extends GeneratingKineticTileEntity implements IAirCurrentSource {
@@ -94,6 +99,17 @@ public class EncasedFanTileEntity extends GeneratingKineticTileEntity implements
 		return airCurrent;
 	}
 
+	@Nullable
+	@Override
+	public World getAirCurrentWorld() {
+		return world;
+	}
+
+	@Override
+	public BlockPos getAirCurrentPos() {
+		return pos;
+	}
+
 	@Override
 	public Direction getAirflowOriginSide() {
 		return this.getBlockState()
@@ -110,6 +126,11 @@ public class EncasedFanTileEntity extends GeneratingKineticTileEntity implements
 		return speed > 0 ? facing : facing.getOpposite();
 	}
 
+	@Override
+	public boolean isSourceRemoved() {
+		return removed;
+	}
+
 	@Override
 	public void onSpeedChanged(float prevSpeed) {
 		super.onSpeedChanged(prevSpeed);

src/main/java/com/simibubi/create/content/contraptions/components/fan/IAirCurrentSource.java

@@ -16,9 +16,9 @@ public interface IAirCurrentSource {
 	AirCurrent getAirCurrent();
 
 	@Nullable
-	World getWorld();
+	World getAirCurrentWorld();
 
-	BlockPos getPos();
+	BlockPos getAirCurrentPos();
 
 	float getSpeed();
 
@@ -36,5 +36,5 @@ public interface IAirCurrentSource {
 		return this.getSpeed() > 0 ? pushDistance : pullDistance;
 	}
 
-	boolean isRemoved();
+	boolean isSourceRemoved();
 }

src/main/java/com/simibubi/create/content/contraptions/particle/AirFlowParticle.java

@@ -50,7 +50,7 @@ public class AirFlowParticle extends SimpleAnimatedParticle {
 
 	@Override
 	public void tick() {
-		if (source == null || source.isRemoved()) {
+		if (source == null || source.isSourceRemoved()) {
 			dissipate();
 			return;
 		}
@@ -70,7 +70,7 @@ public class AirFlowParticle extends SimpleAnimatedParticle {
 			if (!source.getAirCurrent().pushing)
 				motion = motion.scale(-1);
 
-			double distance = new Vector3d(posX, posY, posZ).subtract(VecHelper.getCenterOf(source.getPos()))
+			double distance = new Vector3d(posX, posY, posZ).subtract(VecHelper.getCenterOf(source.getAirCurrentPos()))
 					.mul(directionVec).length() - .5f;
 			if (distance > source.getAirCurrent().maxDistance + 1 || distance < -.25f) {
 				dissipate();

src/main/java/com/simibubi/create/content/logistics/block/chute/ChuteTileEntity.java

@@ -42,6 +42,7 @@ import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.util.text.ITextComponent;
 import net.minecraft.util.text.StringTextComponent;
 import net.minecraft.util.text.TextFormatting;
+import net.minecraft.world.World;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.items.CapabilityItemHandler;
@@ -689,6 +690,17 @@ public class ChuteTileEntity extends SmartTileEntity implements IHaveGoggleInfor
 		return airCurrent;
 	}
 
+	@Nullable
+	@Override
+	public World getAirCurrentWorld() {
+		return world;
+	}
+
+	@Override
+	public BlockPos getAirCurrentPos() {
+		return pos;
+	}
+
 	@Override
 	public float getSpeed() {
 		if (getBlockState().get(ChuteBlock.SHAPE) == Shape.NORMAL && getBlockState().get(ChuteBlock.FACING) != Direction.DOWN)
@@ -705,6 +717,11 @@ public class ChuteTileEntity extends SmartTileEntity implements IHaveGoggleInfor
 		return speed > 0 ? Direction.UP : Direction.DOWN;
 	}
 
+	@Override
+	public boolean isSourceRemoved() {
+		return removed;
+	}
+
 	@Override
 	public Direction getAirflowOriginSide() {
 		return world != null && !(world.getTileEntity(pos.down()) instanceof IAirCurrentSource)