diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c11798..96bc516 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # 更新日志
 
+## 1.2.4
+
+- 修复回收空间时文件不存在异常
+- 修复章节标记时间异常导致转封装出错
+
 ## 1.2.3
 
 - 修复直播间标题有特殊字符导致文件创建失败
diff --git a/src/blrec/__init__.py b/src/blrec/__init__.py
index acab0d5..00b0ef1 100644
--- a/src/blrec/__init__.py
+++ b/src/blrec/__init__.py
@@ -1,4 +1,4 @@
 
 __prog__ = 'blrec'
-__version__ = '1.2.3'
+__version__ = '1.2.4'
 __github__ = 'https://github.com/acgnhiki/blrec'
diff --git a/src/blrec/core/stream_recorder.py b/src/blrec/core/stream_recorder.py
index d1e9944..2ceccdd 100644
--- a/src/blrec/core/stream_recorder.py
+++ b/src/blrec/core/stream_recorder.py
@@ -331,6 +331,9 @@ class StreamRecorder(
             logger.debug('Response received')
             response.raise_for_status()
 
+            if self._stopped:
+                return
+
             assert self._stream_processor is not None
             self._stream_processor.process_stream(
                 io.BufferedReader(
diff --git a/src/blrec/disk_space/space_reclaimer.py b/src/blrec/disk_space/space_reclaimer.py
index 86a7a93..3d9239a 100644
--- a/src/blrec/disk_space/space_reclaimer.py
+++ b/src/blrec/disk_space/space_reclaimer.py
@@ -7,6 +7,12 @@ import asyncio
 from functools import partial
 from typing import Iterable, List
 
+from tenacity import (
+    retry,
+    wait_none,
+    stop_after_attempt,
+    retry_if_exception_type,
+)
 
 from .helpers import delete_file, is_space_enough
 from .space_monitor import SpaceMonitor, DiskUsage, SpaceEventListener
@@ -65,6 +71,11 @@ class SpaceReclaimer(SpaceEventListener, SwitchableMixin):
                 return True
         return False
 
+    @retry(
+        retry=retry_if_exception_type(OSError),
+        wait=wait_none(),
+        stop=stop_after_attempt(3),
+    )
     async def _get_record_file_paths(self, max_ctime: float) -> List[str]:
         glob_path = os.path.join(self.path, '*/**/*.*')
         paths: Iterable[Path]
diff --git a/src/blrec/postprocess/ffmpeg_metadata.py b/src/blrec/postprocess/ffmpeg_metadata.py
index 90e98c0..8b801f1 100644
--- a/src/blrec/postprocess/ffmpeg_metadata.py
+++ b/src/blrec/postprocess/ffmpeg_metadata.py
@@ -1,3 +1,4 @@
+import logging
 import json
 from typing import Iterable, cast
 
@@ -8,6 +9,9 @@ from ..flv.stream_processor import JoinPoint
 from ..flv.helpers import make_comment_for_joinpoints
 
 
+logger = logging.getLogger(__name__)
+
+
 async def make_metadata_file(flv_path: str) -> str:
     path = flv_path + '.meta'
     async with aiofiles.open(path, 'wb') as f:
@@ -57,11 +61,16 @@ def _make_chapters(
 
     result = ''
     for i in range(1, len(timestamps)):
+        start = timestamps[i - 1]
+        end = timestamps[i]
+        if end < start:
+            logger.warning(f'Chapter end time {end} before start {start}')
+            end = start
         result += f"""\
 [CHAPTER]
 TIMEBASE=1/1000
-START={timestamps[i-1]}
-END={timestamps[i]}
+START={start}
+END={end}
 title=segment \\#{i}
 """
     return result