diff --git a/Content.Client/Gameplay/GameplayStateBase.cs b/Content.Client/Gameplay/GameplayStateBase.cs
index 63cbfdb09c..0a695b2c01 100644
--- a/Content.Client/Gameplay/GameplayStateBase.cs
+++ b/Content.Client/Gameplay/GameplayStateBase.cs
@@ -185,7 +185,7 @@ namespace Content.Client.Gameplay
 
             EntityCoordinates coordinates = default;
             EntityUid? entityToClick = null;
-            if (args.Viewport is IViewportControl vp)
+            if (args.Viewport is IViewportControl vp && kArgs.PointerLocation.IsValid)
             {
                 var mousePosWorld = vp.PixelToMap(kArgs.PointerLocation.Position);
                 entityToClick = GetClickedEntity(mousePosWorld);
@@ -194,6 +194,10 @@ namespace Content.Client.Gameplay
                     grid.MapToGrid(mousePosWorld) :
                     EntityCoordinates.FromMap(_mapManager, mousePosWorld);
             }
+            else
+            {
+                coordinates = EntityCoordinates.Invalid;
+            }
 
             var message = new ClientFullInputCmdMessage(_timing.CurTick, _timing.TickFraction, funcId)
             {
diff --git a/Content.Server/Hands/Systems/HandsSystem.cs b/Content.Server/Hands/Systems/HandsSystem.cs
index e2bb991318..12c2a396de 100644
--- a/Content.Server/Hands/Systems/HandsSystem.cs
+++ b/Content.Server/Hands/Systems/HandsSystem.cs
@@ -170,7 +170,7 @@ namespace Content.Server.Hands.Systems
 
         private bool HandleThrowItem(ICommonSession? playerSession, EntityCoordinates coordinates, EntityUid entity)
         {
-            if (playerSession?.AttachedEntity is not {Valid: true} player || !Exists(player))
+            if (playerSession?.AttachedEntity is not {Valid: true} player || !Exists(player) || !coordinates.IsValid(EntityManager))
                 return false;
 
             return ThrowHeldItem(player, coordinates);