--- a/net/minecraft/commands/CommandSourceStack.java
+++ b/net/minecraft/commands/CommandSourceStack.java
@@ -91,7 +_,7 @@
             CommandResultCallback.EMPTY,
             EntityAnchorArgument.Anchor.FEET,
             CommandSigningContext.ANONYMOUS,
-            TaskChainer.immediate(server)
+            TaskChainer.immediate((Runnable run) -> { io.papermc.paper.threadedregions.RegionizedServer.getInstance().addTask(run);}) // Folia - region threading
         );
     }
 
