diff --git a/patches/minecraft/net/minecraft/client/Minecraft.java.patch b/patches/minecraft/net/minecraft/client/Minecraft.java.patch
index 8fa08889c..e2de5663f 100644
--- a/patches/minecraft/net/minecraft/client/Minecraft.java.patch
+++ b/patches/minecraft/net/minecraft/client/Minecraft.java.patch
@@ -86,7 +86,22 @@
                  i = Mouse.getEventButton();
                  KeyBinding.func_74510_a(i - 100, Mouse.getEventButtonState());
  
-@@ -2217,6 +2228,8 @@
+@@ -2206,7 +2217,13 @@
+         NetworkManager networkmanager = NetworkManager.func_150722_a(socketaddress);
+         networkmanager.func_150719_a(new NetHandlerLoginClient(networkmanager, this, (GuiScreen)null));
+         networkmanager.func_179290_a(new C00Handshake(47, socketaddress.toString(), 0, EnumConnectionState.LOGIN, true));
+-        networkmanager.func_179290_a(new C00PacketLoginStart(this.func_110432_I().func_148256_e()));
++        com.mojang.authlib.GameProfile gameProfile = this.func_110432_I().func_148256_e();
++        if (!this.func_110432_I().hasCachedProperties())
++        {
++            gameProfile = field_152355_az.fillProfileProperties(gameProfile, true); //Forge: Fill profile properties upon game load. Fixes MC-52974.
++            this.func_110432_I().setProperties(gameProfile.getProperties());
++        }
++        networkmanager.func_179290_a(new C00PacketLoginStart(gameProfile));
+         this.field_71453_ak = networkmanager;
+     }
+ 
+@@ -2217,6 +2234,8 @@
  
      public void func_71353_a(WorldClient p_71353_1_, String p_71353_2_)
      {
@@ -95,7 +110,7 @@
          if (p_71353_1_ == null)
          {
              NetHandlerPlayClient nethandlerplayclient = this.func_147114_u();
-@@ -2230,6 +2243,18 @@
+@@ -2230,6 +2249,18 @@
              {
                  this.field_71437_Z.func_71263_m();
                  this.field_71437_Z.func_175592_a();
@@ -114,7 +129,7 @@
              }
  
              this.field_71437_Z = null;
-@@ -2361,134 +2386,11 @@
+@@ -2361,134 +2392,11 @@
          if (this.field_71476_x != null)
          {
              boolean flag = this.field_71439_g.field_71075_bZ.field_75098_d;
@@ -251,7 +266,7 @@
              if (flag)
              {
                  int j = this.field_71439_g.field_71069_bz.field_75151_b.size() - 9 + inventoryplayer.field_70461_c;
-@@ -2744,8 +2646,11 @@
+@@ -2744,8 +2652,11 @@
          p_70001_1_.func_152767_b("gl_max_texture_size", Integer.valueOf(func_71369_N()));
      }
  
@@ -263,7 +278,7 @@
          for (int i = 16384; i > 0; i >>= 1)
          {
              GL11.glTexImage2D(GL11.GL_PROXY_TEXTURE_2D, 0, GL11.GL_RGBA, i, i, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, (ByteBuffer)null);
-@@ -2753,6 +2658,7 @@
+@@ -2753,6 +2664,7 @@
  
              if (j != 0)
              {
diff --git a/patches/minecraft/net/minecraft/util/Session.java.patch b/patches/minecraft/net/minecraft/util/Session.java.patch
index 5686360a8..75fdc5212 100644
--- a/patches/minecraft/net/minecraft/util/Session.java.patch
+++ b/patches/minecraft/net/minecraft/util/Session.java.patch
@@ -1,6 +1,11 @@
 --- ../src-base/minecraft/net/minecraft/util/Session.java
 +++ ../src-work/minecraft/net/minecraft/util/Session.java
-@@ -19,6 +19,19 @@
+@@ -16,9 +16,24 @@
+     private final String field_148258_c;
+     private final Session.Type field_152429_d;
+     private static final String __OBFID = "CL_00000659";
++    /** Forge: Cache of the local session's GameProfile properties. */
++    private com.mojang.authlib.properties.PropertyMap properties;
  
      public Session(String p_i1098_1_, String p_i1098_2_, String p_i1098_3_, String p_i1098_4_)
      {
@@ -20,7 +25,14 @@
          this.field_74286_b = p_i1098_1_;
          this.field_148257_b = p_i1098_2_;
          this.field_148258_c = p_i1098_3_;
-@@ -54,7 +67,7 @@
+@@ -50,11 +65,13 @@
+         try
+         {
+             UUID uuid = UUIDTypeAdapter.fromString(this.func_148255_b());
+-            return new GameProfile(uuid, this.func_111285_a());
++            GameProfile ret = new GameProfile(uuid, this.func_111285_a());    //Forge: Adds cached GameProfile properties to returned GameProfile.
++            if (properties != null) ret.getProperties().putAll(properties); // Helps to cut down on calls to the session service,
++            return ret;                                                     // which helps to fix MC-52974.
          }
          catch (IllegalArgumentException illegalargumentexception)
          {
@@ -29,3 +41,23 @@
          }
      }
  
+@@ -63,6 +80,19 @@
+         return this.field_152429_d;
+     }
+ 
++    /* ======================================== FORGE START ===================================== */
++    //For internal use only. Modders should never need to use this.
++    public void setProperties(com.mojang.authlib.properties.PropertyMap properties)
++    {
++        if(this.properties == null) this.properties = properties;
++    }
++
++    public boolean hasCachedProperties()
++    {
++        return properties != null;
++    }
++    /* ========================================= FORGE END ====================================== */
++
+     @SideOnly(Side.CLIENT)
+     public static enum Type
+     {