diff --git a/packages/communication/src/messages/parser/navigator/GetGuestRoomResultMessageParser.ts b/packages/communication/src/messages/parser/navigator/GetGuestRoomResultMessageParser.ts
index 0595de2..91e5654 100644
--- a/packages/communication/src/messages/parser/navigator/GetGuestRoomResultMessageParser.ts
+++ b/packages/communication/src/messages/parser/navigator/GetGuestRoomResultMessageParser.ts
@@ -45,12 +45,19 @@ export class GetGuestRoomResultMessageParser implements IMessageParser
         this.data.canMute = wrapper.readBoolean();
         this._chat = new RoomChatSettings(wrapper);
 
-        if(wrapper.bytesAvailable)
-        {
-            this._hotelTimeZoneId = wrapper.readString();
-            this._hotelCurrentTimeMs = Number(wrapper.readString()) || 0;
-            if(wrapper.bytesAvailable) this._roomItemLimit = wrapper.readInt();
-        }
+        // Optional trailing blocks, one tier per emulator release:
+        //   block 1: hotel timezone id + current time ms (2 strings)
+        //   block 2: room item limit (1 int)
+        // Flat early-return chain so an older server stops cleanly at
+        // whichever block it doesn't ship. Defaults from flush().
+        if(!wrapper.bytesAvailable) return true;
+
+        this._hotelTimeZoneId = wrapper.readString();
+        this._hotelCurrentTimeMs = Number(wrapper.readString()) || 0;
+
+        if(!wrapper.bytesAvailable) return true;
+
+        this._roomItemLimit = wrapper.readInt();
 
         return true;
     }
diff --git a/packages/communication/src/messages/parser/user/data/UserProfileParser.ts b/packages/communication/src/messages/parser/user/data/UserProfileParser.ts
index ef07255..4c24ab2 100644
--- a/packages/communication/src/messages/parser/user/data/UserProfileParser.ts
+++ b/packages/communication/src/messages/parser/user/data/UserProfileParser.ts
@@ -82,29 +82,35 @@ export class UserProfileParser implements IMessageParser
         this._secondsSinceLastVisit = wrapper.readInt();
         this._openProfileWindow = wrapper.readBoolean();
 
-        if(wrapper.bytesAvailable)
-        {
-            this._backgroundId = wrapper.readInt();
-            this._standId = wrapper.readInt();
-            this._overlayId = wrapper.readInt();
+        // Optional trailing blocks, one tier per emulator release:
+        //   block 1: background / stand / overlay (3 ints)
+        //   block 2: card background (1 int)
+        //   block 3: nick icon (1 string)
+        //   block 4: prefix decoration set (6 strings)
+        // Each tier early-returns to keep the parser tolerant of older
+        // servers that don't ship the later blocks. Defaults set by flush().
+        if(!wrapper.bytesAvailable) return true;
 
-            this._cardBackgroundId = (wrapper.bytesAvailable ? wrapper.readInt() : 0);
+        this._backgroundId = wrapper.readInt();
+        this._standId = wrapper.readInt();
+        this._overlayId = wrapper.readInt();
 
-            if(wrapper.bytesAvailable)
-            {
-                this._nickIcon = wrapper.readString();
+        if(!wrapper.bytesAvailable) return true;
 
-                if(wrapper.bytesAvailable)
-                {
-                    this._prefixText = wrapper.readString();
-                    this._prefixColor = wrapper.readString();
-                    this._prefixIcon = wrapper.readString();
-                    this._prefixEffect = wrapper.readString();
-                    this._prefixFont = wrapper.readString();
-                    this._displayOrder = wrapper.readString();
-                }
-            }
-        }
+        this._cardBackgroundId = wrapper.readInt();
+
+        if(!wrapper.bytesAvailable) return true;
+
+        this._nickIcon = wrapper.readString();
+
+        if(!wrapper.bytesAvailable) return true;
+
+        this._prefixText = wrapper.readString();
+        this._prefixColor = wrapper.readString();
+        this._prefixIcon = wrapper.readString();
+        this._prefixEffect = wrapper.readString();
+        this._prefixFont = wrapper.readString();
+        this._displayOrder = wrapper.readString();
 
         return true;
     }