proxy/src/main/java/com/velocitypowered/proxy/protocol/packet/chat/session/SessionPlayerCommandPacket.java

@@ -65,8 +65,7 @@ public class SessionPlayerCommandPacket implements MinecraftPacket {
   }
 
   public boolean isSigned() {
-    if (salt == 0) return false;
+    return !argumentSignatures.isEmpty();
-    return !lastSeenMessages.isEmpty() || !argumentSignatures.isEmpty();
   }
 
   @Override