possible fix

Dockers/self-hosted-iptv/main.py

@@ -289,35 +289,26 @@ def _schedule_epoch_utc() -> datetime:
 def stream_live_channel(paths: list[Path], wfile, durations: list[float]) -> None:
     """
     Run FFmpeg to output a continuous MPEG-TS stream from paths, looping forever.
-    start_offset_sec aligns the stream with the EPG (schedule started at midnight UTC).
     Stops when wfile write fails (client disconnect).
+    (No -ss seek: seeking into a looping concat input is unreliable, so stream
+    always starts from playlist start; EPG order and durations still match.)
     """
     if not paths:
         return
-    cycle_duration = sum(durations)
-    if cycle_duration <= 0:
-        return
-    now = datetime.now(timezone.utc)
-    epoch = _schedule_epoch_utc()
-    start_offset_sec = (now - epoch).total_seconds() % cycle_duration
 
     with tempfile.NamedTemporaryFile(mode="w", suffix=".txt", delete=False) as f:
         write_concat_list(paths, f)
         list_path = f.name
     try:
-        cmd = [
-            "ffmpeg",
-            "-stream_loop", "-1",
-            "-f", "concat", "-safe", "0", "-i", list_path,
-            "-c", "copy",
-            "-f", "mpegts",
-            "-",
-        ]
-        if start_offset_sec >= 0.5:
-            # Seek so "now playing" matches EPG (schedule epoch = midnight UTC)
-            cmd = cmd[:9] + ["-ss", str(round(start_offset_sec, 2))] + cmd[9:]
         proc = subprocess.Popen(
-            cmd,
+            [
+                "ffmpeg",
+                "-stream_loop", "-1",
+                "-f", "concat", "-safe", "0", "-i", list_path,
+                "-c", "copy",
+                "-f", "mpegts",
+                "-",
+            ],
             stdout=subprocess.PIPE,
             stderr=subprocess.DEVNULL,
             start_new_session=True,