diff --git a/build.gradle b/build.gradle
index 8768e707..084df2ae 100644
--- a/build.gradle
+++ b/build.gradle
@@ -127,7 +127,7 @@ dependencies {
     modCompileOnly("maven.modrinth:sodium-extra:mc1.21.11-0.8.0+fabric")
     modRuntimeOnlyMsk("maven.modrinth:sodium-extra:mc1.21.11-0.8.0+fabric")
 
-    modCompileOnly("maven.modrinth:chunky:1.4.40-fabric")
+    modCompileOnly("maven.modrinth:chunky:1.4.54-fabric")
     //modRuntimeOnlyMsk("maven.modrinth:chunky:1.4.40-fabric")
 
     modRuntimeOnlyMsk("maven.modrinth:spark:1.10.152-fabric")
diff --git a/src/main/java/me/cortex/voxy/client/core/NormalRenderPipeline.java b/src/main/java/me/cortex/voxy/client/core/NormalRenderPipeline.java
index e5f59261..ac4e980e 100644
--- a/src/main/java/me/cortex/voxy/client/core/NormalRenderPipeline.java
+++ b/src/main/java/me/cortex/voxy/client/core/NormalRenderPipeline.java
@@ -111,7 +111,7 @@ public class NormalRenderPipeline extends AbstractRenderPipeline {
                 float invEndFogDelta = 1f / (end - start);
                 float endDistance = Minecraft.getInstance().gameRenderer.getRenderDistance()*(float)Math.sqrt(3);
                 float startDelta = -start * invEndFogDelta;
-                glUniform4f(4, invEndFogDelta, startDelta, endDistance*invEndFogDelta+startDelta,0);//
+                glUniform4f(4, invEndFogDelta, startDelta, Math.clamp(endDistance*invEndFogDelta+startDelta, 0, 1),0);//
                 glUniform4f(5, viewport.fogParameters.red(), viewport.fogParameters.green(), viewport.fogParameters.blue(), viewport.fogParameters.alpha());
             } else {
                 glUniform4f(4, 0, 0, 0, 0);
diff --git a/src/main/java/me/cortex/voxy/client/core/rendering/building/RenderDataFactory.java b/src/main/java/me/cortex/voxy/client/core/rendering/building/RenderDataFactory.java
index d933fbe3..09b00fbb 100644
--- a/src/main/java/me/cortex/voxy/client/core/rendering/building/RenderDataFactory.java
+++ b/src/main/java/me/cortex/voxy/client/core/rendering/building/RenderDataFactory.java
@@ -763,10 +763,12 @@ public class RenderDataFactory {
                         //Check and test if can cull W.R.T neighbor
                         if (Mapper.getBlockId(neighborId) != 0) {//Not air
                             int modelId = this.modelMan.getModelId(Mapper.getBlockId(neighborId));
+                            /*
                             if (modelId == ((A>>26)&0xFFFF)) {//TODO: FIXME, this technically isnt correct as need to check self occulsion, thinks?
                                 //TODO: check self occlsuion in the if statment
                                 fail = true;
-                            } else {
+                            } else */
+                            {
                                 long meta = this.modelMan.getModelMetadataFromClientId(modelId);
 
                                 if (ModelQueries.faceOccludes(meta, (axis << 1) | (1 - side))) {
@@ -778,10 +780,16 @@ public class RenderDataFactory {
                         long nA = this.sectionData[(idx+skipAmount) * 2];
                         long nB = this.sectionData[(idx+skipAmount) * 2 + 1];
                         boolean failB = false;
+                        //TODO: check self occlusion
+
+                        /*
                         if ((nA&(0xFFFFL<<26)) == (A&(0xFFFFL<<26))) {//TODO: FIXME, this technically isnt correct as need to check self occulsion, thinks?
                             //TODO: check self occlsuion in the if statment
                             failB = true;
-                        } else {
+                        } else
+                         */
+
+                        {
                             if (ModelQueries.faceOccludes(nB, (axis << 1) | (side))) {
                                 failB = true;
                             }
@@ -1485,9 +1493,10 @@ public class RenderDataFactory {
             int skipB = 0;
             for (int z = 0; z < 32; z++) {
                 int i = y*32+z;
-                int msk = this.nonOpaqueMasks[i];
-                if ((msk & 1) != 0) {//-x
+                int msk = this.opaqueMasks[i];
+                if ((msk & 1)== 0) {//-x
                     long neighborId = this.neighboringFaces[i];
+                    //TODO also check self occlusion
 
                     int sidx = (i<<5) * 2;
                     long A = this.sectionData[sidx];
@@ -1506,8 +1515,10 @@ public class RenderDataFactory {
                     dualMeshNonOpaqueOuterX(0, A, Am, modelId, Mapper.getLightId(neighborId), nM, this.sectionData[sidx+2], this.sectionData[sidx+3], nnx, npx);
                 } else {skipA++;}
 
-                if ((msk & (1<<31)) != 0) {//+x
+                if ((msk & (1<<31)) == 0) {//+x
                     long neighborId = this.neighboringFaces[i+32*32];
+                    //TODO also check self occlusion
+
 
                     int sidx = (i*32+31) * 2;
                     long A = this.sectionData[sidx];
diff --git a/src/main/java/me/cortex/voxy/commonImpl/ImportManager.java b/src/main/java/me/cortex/voxy/commonImpl/ImportManager.java
index 4036de9d..e7230e0b 100644
--- a/src/main/java/me/cortex/voxy/commonImpl/ImportManager.java
+++ b/src/main/java/me/cortex/voxy/commonImpl/ImportManager.java
@@ -83,12 +83,17 @@ public class ImportManager {
     }
 
     public boolean makeAndRunIfNone(WorldEngine engine, Supplier<IDataImporter> factory) {
-        synchronized (this) {
-            if (this.activeImporters.containsKey(engine)) {
-                return false;
+        try {
+            engine.acquireRef();
+            synchronized (this) {
+                if (this.activeImporters.containsKey(engine)) {
+                    return false;
+                }
             }
+            return this.tryRunImport(factory.get());
+        } finally {
+            engine.releaseRef();
         }
-        return this.tryRunImport(factory.get());
     }
 
     public boolean cancelImport(WorldEngine engine) {