diff --git a/kis_trader/engine/momentum_engine.py b/kis_trader/engine/momentum_engine.py
index f9cccda..0272e66 100644
--- a/kis_trader/engine/momentum_engine.py
+++ b/kis_trader/engine/momentum_engine.py
@@ -33,7 +33,7 @@ from kis_trader.engine.momentum_env_keys import (
     _legacy_float,
 )
 from kis_trader.engine.strategy_eod import is_strategy_eod_bar
-from kis_trader.utils.env import get_env_int
+from kis_trader.utils.env import get_env_from_db, get_env_int
 
 MOMENTUM_STRATEGY_ID = "MOMENTUM"
 
diff --git a/kis_trader/engine/momentum_tick_replay.py b/kis_trader/engine/momentum_tick_replay.py
index 9b728dc..ac6ad75 100644
--- a/kis_trader/engine/momentum_tick_replay.py
+++ b/kis_trader/engine/momentum_tick_replay.py
@@ -314,12 +314,12 @@ def try_momentum_sell_on_ticks(
     # 백테 틱재생: 공유메모리 컬럼 뷰면 직접집계(실매 dict 경로 무변경).
     try:
         from kis_trader.backtest.shared_ticks import TickColumnView
-        if isinstance(ticks, TickColumnView):
-            return _try_momentum_sell_on_ticks_columnar(
-                position, ticks, params, is_eod=is_eod, entry_time=entry_time,
-            )
-    except Exception:
-        pass
+    except ImportError:
+        TickColumnView = None  # type: ignore[misc,assignment]
+    if TickColumnView is not None and isinstance(ticks, TickColumnView):
+        return _try_momentum_sell_on_ticks_columnar(
+            position, ticks, params, is_eod=is_eod, entry_time=entry_time,
+        )
 
     if not ticks:
         return None