diff --git a/YD_Event.Application/Workbench/WorkbenchController.cs b/YD_Event.Application/Workbench/WorkbenchController.cs
index 47aff7b..7ffb3d3 100644
--- a/YD_Event.Application/Workbench/WorkbenchController.cs
+++ b/YD_Event.Application/Workbench/WorkbenchController.cs
@@ -615,13 +615,16 @@ public class WorkbenchController : IDynamicApiController
             };
 
             // 同赛事同场地此前投出中的记录统一置为“已被新投屏替换(20)”，保证大屏只展示最新一条
-            await _screenCastRepository.AsUpdateable()
+            var activeScreenCastUpdate = _screenCastRepository.AsUpdateable()
                 .SetColumns(sc => new EventResultScreenCast { CastStatus = 20 },
                     appendColumnsByDataFilter: true)
-                .Where(sc => sc.EventId == input.EventId &&
-                             (!input.VenueId.HasValue || sc.VenueId == input.VenueId.Value) &&
-                             sc.CastStatus == 0)
-                .ExecuteCommandAsync();
+                .Where(sc => sc.EventId == input.EventId && sc.CastStatus == 0);
+            if (input.VenueId.HasValue)
+            {
+                var venueId = input.VenueId.Value;
+                activeScreenCastUpdate = activeScreenCastUpdate.Where(sc => sc.VenueId == venueId);
+            }
+            await activeScreenCastUpdate.ExecuteCommandAsync();
 
             var screenCast = new EventResultScreenCast
             {
@@ -719,13 +722,16 @@ public class WorkbenchController : IDynamicApiController
             }).ToList();
 
             // 同赛事同场地此前投出中的记录统一置为“已被新投屏替换(20)”，保证大屏只展示最新一条
-            await _screenCastRepository.AsUpdateable()
+            var activeScreenCastUpdate = _screenCastRepository.AsUpdateable()
                 .SetColumns(sc => new EventResultScreenCast { CastStatus = 20 },
                     appendColumnsByDataFilter: true)
-                .Where(sc => sc.EventId == input.EventId &&
-                             (!input.VenueId.HasValue || sc.VenueId == input.VenueId.Value) &&
-                             sc.CastStatus == 0)
-                .ExecuteCommandAsync();
+                .Where(sc => sc.EventId == input.EventId && sc.CastStatus == 0);
+            if (input.VenueId.HasValue)
+            {
+                var venueId = input.VenueId.Value;
+                activeScreenCastUpdate = activeScreenCastUpdate.Where(sc => sc.VenueId == venueId);
+            }
+            await activeScreenCastUpdate.ExecuteCommandAsync();
 
             var screenCast = new EventResultScreenCast
             {