diff --git a/python/sglang/srt/layers/attention/triton_backend.py b/python/sglang/srt/layers/attention/triton_backend.py
index 4fd855572..286a1399b 100644
--- a/python/sglang/srt/layers/attention/triton_backend.py
+++ b/python/sglang/srt/layers/attention/triton_backend.py
@@ -329,7 +329,7 @@ class TritonAttnBackend(AttentionBackend):
                 seq_lens,
                 req_pool_indices,
                 bs,
-                token_to_kv_pool_allocator=self.token_to_kv_pool_allocator,
+                token_to_kv_pool=self.token_to_kv_pool,
                 window_kv_indices=self.cuda_graph_window_kv_indices,
             )
         return kv_indptr, window_kv_indptr, window_kv_lens
@@ -374,7 +374,7 @@ class TritonAttnBackend(AttentionBackend):
                     seq_lens[:bs],
                     req_pool_indices,
                     bs,
-                    token_to_kv_pool_allocator=self.token_to_kv_pool_allocator,
+                    token_to_kv_pool=self.token_to_kv_pool,
                     window_kv_indices=window_kv_indices,
                 )
             )
@@ -461,7 +461,7 @@ class TritonAttnBackend(AttentionBackend):
                             forward_batch.req_pool_indices,
                             bs,
                             self.device,
-                            self.token_to_kv_pool_allocator,
+                            self.token_to_kv_pool,
                         )
                     )
                     window_num_kv_splits = torch.empty(
@@ -532,7 +532,7 @@ class TritonAttnBackend(AttentionBackend):
                     forward_batch.req_pool_indices,
                     bs,
                     self.device,
-                    self.token_to_kv_pool_allocator,
+                    self.token_to_kv_pool,
                 )
 
             custom_mask = spec_info.custom_mask
@@ -592,7 +592,7 @@ class TritonAttnBackend(AttentionBackend):
                     forward_batch.req_pool_indices,
                     bs,
                     self.device,
-                    self.token_to_kv_pool_allocator,
+                    self.token_to_kv_pool,
                 )
 
             qo_indptr = self.qo_indptr
@@ -1445,7 +1445,7 @@ def update_sliding_window_buffer(
     req_pool_indices,
     bs,
     device=None,
-    token_to_kv_pool_allocator=None,
+    token_to_kv_pool=None,
     window_kv_indices=None,
 ):
     """Fill window KV buffers for sliding-window attention.
@@ -1474,11 +1474,14 @@ def update_sliding_window_buffer(
         window_kv_indices,
         req_to_token.stride(0),
     )
-    if hasattr(token_to_kv_pool_allocator, "translate_loc_from_full_to_swa"):
+    if hasattr(token_to_kv_pool, "translate_loc_from_full_to_swa"):
         kv_last_index = window_kv_indptr[-1]
+        # Flush before+after: window_kv_indices is a different tensor than out_cache_loc.
+        token_to_kv_pool.invalidate_loc_cache()
         window_kv_indices[:kv_last_index] = (
-            token_to_kv_pool_allocator.translate_loc_from_full_to_swa(
+            token_to_kv_pool.translate_loc_from_full_to_swa(
                 window_kv_indices[:kv_last_index]
             )
         )
+        token_to_kv_pool.invalidate_loc_cache()
     return window_kv_indptr, window_kv_indices, window_kv_lens, window_kv_start_idx
diff --git a/python/sglang/srt/model_executor/model_runner.py b/python/sglang/srt/model_executor/model_runner.py
index fd83f5e64..3d0423d9b 100644
--- a/python/sglang/srt/model_executor/model_runner.py
+++ b/python/sglang/srt/model_executor/model_runner.py
@@ -3266,6 +3266,9 @@ class ModelRunner(ModelRunnerKVCacheMixin):
                 self.hisparse_coordinator.wait_for_pending_backup()
                 self.hisparse_coordinator.num_real_reqs.fill_(forward_batch.batch_size)
 
+            if self.is_hybrid_swa:
+                self.token_to_kv_pool.invalidate_loc_cache()
+
             # Replay cuda graph if applicable
             if can_run_graph:
                 ret = self.graph_runner.replay(
@@ -3292,9 +3295,6 @@ class ModelRunner(ModelRunnerKVCacheMixin):
                     server_args=self.server_args,
                 )
 
-            if self.is_hybrid_swa:
-                self.token_to_kv_pool.invalidate_loc_cache()
-
             # Hisparse coordinator — backends now read it from self.model_runner.
             if self.hisparse_coordinator is not None:
                 self.hisparse_coordinator.num_real_reqs.fill_(forward_batch.batch_size)