diff --git a/src/Qt/VideoCacheThread.cpp b/src/Qt/VideoCacheThread.cpp
index 9c0aa9aa..a7336b07 100644
--- a/src/Qt/VideoCacheThread.cpp
+++ b/src/Qt/VideoCacheThread.cpp
@@ -28,7 +28,6 @@ namespace openshot
         , speed(0)
         , last_speed(1)
         , last_dir(1)                   // assume forward (+1) on first launch
-        , is_playing(false)
         , userSeeked(false)
         , requested_display_frame(1)
         , current_display_frame(1)
@@ -46,18 +45,6 @@ namespace openshot
     {
     }
 
-    // Play the video
-    void VideoCacheThread::Play()
-    {
-        is_playing = true;
-    }
-
-    // Stop the video
-    void VideoCacheThread::Stop()
-    {
-        is_playing = false;
-    }
-
     // Is cache ready for playback (pre-roll)
     bool VideoCacheThread::isReady()
     {
@@ -108,6 +95,13 @@ namespace openshot
     {
         if (start_preroll) {
             userSeeked = true;
+
+            if (!reader->GetCache()->Contains(new_position))
+            {
+                // If user initiated seek, and current frame not found (
+                Timeline* timeline = static_cast<Timeline*>(reader);
+                timeline->ClearAllCache();
+            }
         }
         requested_display_frame = new_position;
     }
@@ -218,7 +212,7 @@ namespace openshot
             CacheBase* cache   = reader ? reader->GetCache() : nullptr;
 
             // If caching disabled or no reader, sleep briefly
-            if (!settings->ENABLE_PLAYBACK_CACHING || !cache || !is_playing) {
+            if (!settings->ENABLE_PLAYBACK_CACHING || !cache) {
                 std::this_thread::sleep_for(double_micro_sec(50000));
                 continue;
             }
diff --git a/src/Qt/VideoCacheThread.h b/src/Qt/VideoCacheThread.h
index bfc0c490..1fd6decd 100644
--- a/src/Qt/VideoCacheThread.h
+++ b/src/Qt/VideoCacheThread.h
@@ -40,11 +40,11 @@ namespace openshot
         /// @return True if at least min_frames_ahead frames have been cached.
         bool isReady();
 
-        /// Set is_playing = true, so run() will begin caching/playback.
-        void Play();
+        /// Play method is unimplemented
+        void Play() {};
 
-        /// Set is_playing = false, effectively pausing playback (caching still runs).
-        void Stop();
+        /// Stop method is unimplemented
+        void Stop() {};
 
         /**
          * @brief Set playback speed/direction. Positive = forward, negative = rewind, zero = pause.
@@ -162,8 +162,6 @@ namespace openshot
         int speed;            ///< Current playback speed (0=paused, >0 forward, <0 backward).
         int last_speed;       ///< Last non-zero speed (for tracking).
         int last_dir;         ///< Last direction sign (+1 forward, –1 backward).
-
-        bool is_playing;      ///< True if playback is “running” (affects thread loop, not caching).
         bool userSeeked;      ///< True if Seek(..., true) was called (forces a cache reset).
 
         int64_t requested_display_frame; ///< Frame index the user requested.