diff --git a/core/assets-raw/sprites/blocks/units/prime-control-core.png b/core/assets-raw/sprites/blocks/units/prime-control-core.png
deleted file mode 100644
index b1879a9ac7..0000000000
Binary files a/core/assets-raw/sprites/blocks/units/prime-control-core.png and /dev/null differ
diff --git a/core/src/mindustry/graphics/BlockRenderer.java b/core/src/mindustry/graphics/BlockRenderer.java
index 2ba35fd37d..a01c694e89 100644
--- a/core/src/mindustry/graphics/BlockRenderer.java
+++ b/core/src/mindustry/graphics/BlockRenderer.java
@@ -396,9 +396,10 @@ public class BlockRenderer{
 
             Draw.z(Layer.block);
 
-            boolean visible = (build == null || !build.inFogTo(pteam)/* || build.wasVisible*/);
+            boolean visible = (build == null || !build.inFogTo(pteam));
 
-            if(block != Blocks.air && visible){
+            //comment wasWasible part for hiding?
+            if(block != Blocks.air && (visible || build.wasVisible)){
                 block.drawBase(tile);
                 Draw.reset();
                 Draw.z(Layer.block);
@@ -410,8 +411,10 @@ public class BlockRenderer{
                 }
 
                 if(build != null){
-                    if(!build.wasVisible) updateShadow(build);
-                    build.wasVisible = true;
+                    if(visible){
+                        if(!build.wasVisible) updateShadow(build);
+                        build.wasVisible = true;
+                    }
 
                     if(build.damaged()){
                         Draw.z(Layer.blockCracks);
@@ -432,8 +435,8 @@ public class BlockRenderer{
             }else if(!visible){
                 //TODO here is the question: should buildings you lost sight of remain rendered? if so, how should this information be stored?
                 //comment lines below for buggy persistence
-                if(build.wasVisible) updateShadow(build);
-                build.wasVisible = false;
+                //if(build.wasVisible) updateShadow(build);
+                //build.wasVisible = false;
             }
         }
 
diff --git a/core/src/mindustry/graphics/EnvRenderers.java b/core/src/mindustry/graphics/EnvRenderers.java
index cce4d3908e..d7dae0d0c8 100644
--- a/core/src/mindustry/graphics/EnvRenderers.java
+++ b/core/src/mindustry/graphics/EnvRenderers.java
@@ -99,8 +99,7 @@ public class EnvRenderers{
 
             //TODO layer looks better? should not be conditional
             Draw.z(state.rules.fog ? Layer.fogOfWar + 1 : Layer.weather - 1);
-            Weather.drawNoiseLayers(tex, Color.scarlet, 1000f, 0.23f, 0.4f, 1f, 1f, 0f,
-            4, -1.3f, 0.7f, 0.8f, 0.9f);
+            Weather.drawNoiseLayers(tex, Color.scarlet, 1000f, 0.24f, 0.4f, 1f, 1f, 0f, 4, -1.3f, 0.7f, 0.8f, 0.9f);
             Draw.reset();
         });
     }