diff --git a/litellm/proxy/litellm_pre_call_utils.py b/litellm/proxy/litellm_pre_call_utils.py
index ce7184b1370..5ea632b8eef 100644
--- a/litellm/proxy/litellm_pre_call_utils.py
+++ b/litellm/proxy/litellm_pre_call_utils.py
@@ -1,6 +1,7 @@
 import asyncio
 import copy
 import time
+from collections import OrderedDict
 from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union
 
 from fastapi import Request
@@ -37,7 +38,9 @@ from litellm.types.utils import (
 )
 
 service_logger_obj = ServiceLogging()  # used for tracking latency on OTEL
-_STALE_TEAM_ALIAS_WARNING_KEYS: set[str] = set()
+# Bounded dedup for stale-alias warnings (FIFO eviction when over cap).
+_MAX_STALE_ALIAS_WARNING_KEYS = 10_000
+_STALE_TEAM_ALIAS_WARNING_KEYS: OrderedDict[str, None] = OrderedDict()
 
 
 if TYPE_CHECKING:
@@ -1330,7 +1333,12 @@ def _update_model_if_team_alias_exists(
                     return
                 warning_key = f"{user_api_key_dict.team_id}:{_model}:{aliased_target}"
                 if warning_key not in _STALE_TEAM_ALIAS_WARNING_KEYS:
-                    _STALE_TEAM_ALIAS_WARNING_KEYS.add(warning_key)
+                    _STALE_TEAM_ALIAS_WARNING_KEYS[warning_key] = None
+                    while (
+                        len(_STALE_TEAM_ALIAS_WARNING_KEYS)
+                        > _MAX_STALE_ALIAS_WARNING_KEYS
+                    ):
+                        _STALE_TEAM_ALIAS_WARNING_KEYS.popitem(last=False)
                     verbose_proxy_logger.warning(
                         "Stale team model alias detected for model='%s', team_id='%s'. "
                         "New sibling deployments may be unreachable. "
diff --git a/litellm/proxy/management_endpoints/model_management_endpoints.py b/litellm/proxy/management_endpoints/model_management_endpoints.py
index e465b76ba18..bd5cf023cca 100644
--- a/litellm/proxy/management_endpoints/model_management_endpoints.py
+++ b/litellm/proxy/management_endpoints/model_management_endpoints.py
@@ -505,6 +505,9 @@ async def _update_existing_team_model_assignment(
 
     # Update alias only if public name changed
     if old_public_name and public_model_name != old_public_name:
+        # Clear user-supplied public name from patch before any early return so the
+        # caller does not overwrite the internal UUID-based model_name in the DB.
+        patch_data.model_name = None
         if prisma_client is None:
             verbose_proxy_logger.warning(
                 "prisma_client not initialized; skipping public name update entirely to avoid orphaned entries"
diff --git a/tests/test_litellm/proxy/management_endpoints/test_model_management_endpoints.py b/tests/test_litellm/proxy/management_endpoints/test_model_management_endpoints.py
index 3da360e84d2..0076a72f18c 100644
--- a/tests/test_litellm/proxy/management_endpoints/test_model_management_endpoints.py
+++ b/tests/test_litellm/proxy/management_endpoints/test_model_management_endpoints.py
@@ -910,6 +910,41 @@ class TestTeamModelUpdate:
             mock_add.assert_called_once()
             mock_delete.assert_not_called()
 
+    @pytest.mark.asyncio
+    async def test_rename_with_prisma_none_clears_patch_model_name(self):
+        """Rename path must clear patch_data.model_name even when prisma is unavailable (P1)."""
+        from litellm.proxy.management_endpoints.model_management_endpoints import (
+            _update_existing_team_model_assignment,
+        )
+        from litellm.types.router import ModelInfo
+
+        db_model = Deployment(
+            model_name="model_name_team_123_uuid1",
+            litellm_params=LiteLLM_Params(model="azure/gpt-4o-mini"),
+            model_info=ModelInfo(
+                team_id="team_123", team_public_model_name="old-public-name"
+            ),
+        )
+        patch_data = updateDeployment(
+            model_name="new-public-name",
+            model_info=ModelInfo(team_id="team_123"),
+        )
+        user_api_key_dict = UserAPIKeyAuth(
+            user_id="test_user",
+            user_role=LitellmUserRoles.PROXY_ADMIN,
+        )
+
+        await _update_existing_team_model_assignment(
+            team_id="team_123",
+            public_model_name="new-public-name",
+            db_model=db_model,
+            patch_data=patch_data,
+            user_api_key_dict=user_api_key_dict,
+            prisma_client=None,
+        )
+
+        assert patch_data.model_name is None
+
     @pytest.mark.asyncio
     async def test_rename_handles_legacy_string_model_info(self):
         """Test rename path handles legacy string-encoded model_info rows without crashing."""