diff --git a/proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketDecoder.java b/proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketDecoder.java
index dc1090b..57b1832 100644
--- a/proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketDecoder.java
+++ b/proto_1.12.2_netty/src/main/java/mc/core/network/proto_1_12_2/netty/PacketDecoder.java
@@ -51,13 +51,19 @@ public class PacketDecoder extends ByteToMessageDecoder {
         Class<? extends CSPacket> packetClass = state.getClientSidePacket(packetId);
         if (packetClass == null) {
             log.warn("Unknown packet: {}:0x{}", state.name(), hexPacketId);
-            in.skipBytes(packetSize - rb);
+            in.skipBytes(in.readableBytes());
         } else {
             netStream.setDataSize(packetSize - rb);
             CSPacket packet = packetClass.newInstance();
-            packet.readSelf(netStream);
-            log.debug("Known packet: {}:{}", state.name(), packet.toString());
-            out.add(packet);
+            try {
+                packet.readSelf(netStream);
+                log.debug("Known packet: {}:{}", state.name(), packet.toString());
+                out.add(packet);
+            } catch (Exception e) {
+                log.warn("Known packet: {}:{}. But throw exception. See debug log.", state.name(), packet.getClass().getSimpleName());
+                log.debug("Read packet", e);
+                in.skipBytes(in.readableBytes());
+            }
         }
     }
 }