Using Android Live Channels as my client, with transcoding. When changing channels, the following is posted in the log. I've also verified that the referenced directory is getting filled with orphan directories.
2021.05.05.0011 (but also occurred on earlier releases)
2021/05/06 15:16:17.760271 [HLS] Stopping inactive session ch6110-dTVE-Philo-ip2600-8800-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx
2021/05/06 15:16:17.760271 [HLS] Stopping transcoder session ch6110-dTVE-Philo-ip2600-8800-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx (out: 1m50.549333s, finished: false)
2021/05/06 15:16:17.765267 [TNR] Closed connection to TVE-Philo for ch6110 SCIENCE
2021/05/06 15:16:18.319165 [ERR] Failed to clean up E:\ChannelsDVR\Streaming\ch6110-dTVE-Philo-ip2600-8800-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-184703991: remove E:\ChannelsDVR\Streaming\ch6110-dTVE-Philo-ip2600-8800-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-184703991\cache\transcoder.log: The process cannot access the file because it is being used by another process.