diff --git a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
index 1c48c66254..bc6c11d08b 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
@@ -13,7 +13,6 @@ namespace BizHawk.Client.Common
 	public sealed partial class TasMovie : Bk2Movie, INotifyPropertyChanged
 	{
 		private readonly Bk2MnemonicConstants _mnemonics = new Bk2MnemonicConstants();
-		private readonly Dictionary<int, IController> _inputStateCache = new Dictionary<int, IController>();
 
 		public IStringLog VerificationLog { get; } = StringLogUtil.MakeStringLog(); // For movies that do not begin with power-on, this is the input required to get into the initial state
 		public TasBranchCollection Branches { get; } = new TasBranchCollection();
@@ -26,7 +25,6 @@ namespace BizHawk.Client.Common
 		public bool LastPositionStable { get; set; } = true;
 		public TasMovieMarkerList Markers { get; private set; }
 		public bool BindMarkersToInput { get; set; }
-		public bool UseInputCache { get; set; }
 		public int CurrentBranch { get; set; }
 
 		public TasLagLog TasLagLog { get; } = new TasLagLog();
@@ -148,26 +146,10 @@ namespace BizHawk.Client.Common
 		/// </summary>
 		public string DisplayValue(int frame, string buttonName)
 		{
-			if (UseInputCache && _inputStateCache.ContainsKey(frame))
-			{
-				return CreateDisplayValueForButton(_inputStateCache[frame], buttonName);
-			}
-
 			var adapter = GetInputState(frame);
-
-			if (UseInputCache)
-			{
-				_inputStateCache.Add(frame, adapter);
-			}
-
 			return CreateDisplayValueForButton(adapter, buttonName);
 		}
 
-		public void FlushInputCache()
-		{
-			_inputStateCache.Clear();
-		}
-
 		private string CreateDisplayValueForButton(IController adapter, string buttonName)
 		{
 			if (adapter.Definition.BoolButtons.Contains(buttonName))
diff --git a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
index 8b051453e6..74dcbbf0f8 100644
--- a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
+++ b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs
@@ -814,12 +814,7 @@ namespace BizHawk.Client.EmuHawk
 
 		private void RefreshTasView()
 		{
-			CurrentTasMovie.UseInputCache = true;
 			TasView.RowCount = CurrentTasMovie.InputLogLength + 1;
-
-			CurrentTasMovie.FlushInputCache();
-			CurrentTasMovie.UseInputCache = false;
-
 			_lastRefresh = Emulator.Frame;
 		}