diff --git a/patches/api/0006-Adventure.patch b/patches/api/0006-Adventure.patch
index c48be7bc320c..1dbe87620276 100644
--- a/patches/api/0006-Adventure.patch
+++ b/patches/api/0006-Adventure.patch
@@ -3586,7 +3586,7 @@ index 2f6ca42330675733b2b4132cbb66e433788d05d5..997b06c19a5277656521e0e298f2958c
  
      @NotNull
 diff --git a/src/main/java/org/bukkit/event/player/PlayerLocaleChangeEvent.java b/src/main/java/org/bukkit/event/player/PlayerLocaleChangeEvent.java
-index 36b436e145a7215682b692a87ab894df25752c1d..c5e8bffef736365881953161ff812c98adf93a80 100644
+index 36b436e145a7215682b692a87ab894df25752c1d..dc6b41950570c3a8b02415dd9017b2336e6e7f0c 100644
 --- a/src/main/java/org/bukkit/event/player/PlayerLocaleChangeEvent.java
 +++ b/src/main/java/org/bukkit/event/player/PlayerLocaleChangeEvent.java
 @@ -12,17 +12,31 @@ public class PlayerLocaleChangeEvent extends PlayerEvent {
@@ -3608,7 +3608,7 @@ index 36b436e145a7215682b692a87ab894df25752c1d..c5e8bffef736365881953161ff812c98
      public PlayerLocaleChangeEvent(@NotNull Player who, @NotNull String locale) {
          super(who);
          this.locale = locale;
-+        this.adventure$locale = net.kyori.adventure.translation.Translator.parseLocale(locale); // Paper
++        this.adventure$locale = java.util.Objects.requireNonNullElse(net.kyori.adventure.translation.Translator.parseLocale(locale), java.util.Locale.US); // Paper start
      }
  
      /**
diff --git a/patches/server/0010-Adventure.patch b/patches/server/0010-Adventure.patch
index 539a3360c93e..8d235e570cf6 100644
--- a/patches/server/0010-Adventure.patch
+++ b/patches/server/0010-Adventure.patch
@@ -2745,7 +2745,7 @@ index 0c77b4b201f6586b4d143ce2c3e710bf9d276a20..3691fd58c7baf98b15c50fa4dacf3a35
  
      public boolean logIPs() {
 diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
-index a721e9cd0958d7fceed1aba8ae55fefed4e6a887..61d4afb6b76fdffdda9f01af5005f005e21f4807 100644
+index a721e9cd0958d7fceed1aba8ae55fefed4e6a887..27a1450696a633578cd44567f240cbc1a4c578ac 100644
 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
 +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
 @@ -162,6 +162,7 @@ import net.minecraft.world.damagesource.CombatTracker;
@@ -2826,7 +2826,7 @@ index a721e9cd0958d7fceed1aba8ae55fefed4e6a887..61d4afb6b76fdffdda9f01af5005f005
          }
          // CraftBukkit end
          this.language = clientOptions.language();
-+        this.adventure$locale = net.kyori.adventure.translation.Translator.parseLocale(this.language); // Paper
++        this.adventure$locale = java.util.Objects.requireNonNullElse(net.kyori.adventure.translation.Translator.parseLocale(this.language), java.util.Locale.US); // Paper
          this.requestedViewDistance = clientOptions.viewDistance();
          this.chatVisibility = clientOptions.chatVisibility();
          this.canChatColor = clientOptions.chatColors();
@@ -3354,7 +3354,7 @@ index 23bdb77690ba15bcbbfb0c70af23336d08ac7752..8f144a357174bbe096ac9b38a5e67a61
                  }
                  collection = icons;
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index 5ee460d5d6e017a52bf26cfd56ca2cfeb82d3343..a381673d2397bcb3569e0b24eb071d86afa709ac 100644
+index e51bed4771dcef6201f943e9289c4a53f029f1ab..c9453c4689d02a39fa4a01aa14fc8d8aa29bc887 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -608,8 +608,10 @@ public final class CraftServer implements Server {
diff --git a/patches/server/0353-Implement-Player-Client-Options-API.patch b/patches/server/0353-Implement-Player-Client-Options-API.patch
index 12e24a1ee2d2..e86b98caa5f4 100644
--- a/patches/server/0353-Implement-Player-Client-Options-API.patch
+++ b/patches/server/0353-Implement-Player-Client-Options-API.patch
@@ -87,7 +87,7 @@ index 0000000000000000000000000000000000000000..b6f4400df3d8ec7e06a996de54f8cabb
 +    }
 +}
 diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
-index f6d266c5b279a22dee273cda109866b627e706da..6e3a791c4623ee904c3348ad7be5ede4b1657a12 100644
+index 347747282c77f5d1dde907b99cc2c8029675dc34..eb0a0a9faacf3c7d879b435b637a9c8203319aa6 100644
 --- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
 +++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
 @@ -338,7 +338,7 @@ public class ServerPlayer extends Player {
@@ -133,10 +133,10 @@ index f6d266c5b279a22dee273cda109866b627e706da..6e3a791c4623ee904c3348ad7be5ede4
 +    public void updateOptionsNoEvents(ClientInformation clientOptions) {
 +        // Paper end
          this.language = clientOptions.language();
-         this.adventure$locale = net.kyori.adventure.translation.Translator.parseLocale(this.language); // Paper
+         this.adventure$locale = java.util.Objects.requireNonNullElse(net.kyori.adventure.translation.Translator.parseLocale(this.language), java.util.Locale.US); // Paper
          this.requestedViewDistance = clientOptions.viewDistance();
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index 1c8e4e3c53acc1c3043cb015cbe504f4cfb7a35c..549c14e2d861c0b4692ee56e1de5df13ef72f6f8 100644
+index 473017107d80aa1467cd2f9400e8d48e39fab7e2..dcea3f827a79de3581adff51f34220a1d656e8e9 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 @@ -567,6 +567,28 @@ public class CraftPlayer extends CraftHumanEntity implements Player {