Docker container run stops with [Errno 5] I/O error

[gannawdm]

I'm trying to process about 250GB (50k files) of photos using the Docker container on a Windows 10 machine. The Input and Output folders are both on an external hard drive connected via USB.

Here's the command I'm running:
docker run -v D:/Photos/Import:/mnt ivandokov/phockup:latest /mnt/Input /mnt/Output "--date YYYY/MM-M --log=/mnt/Output/log.txt"

So far it has copied about 11GB (900+ files) to the Output directory. But each time I run it, it eventually fails with this error.
[2022-10-20 15:46:49] - [WARNING] - [Errno 5] I/O error

Sometimes the error occurs after copying a file and sometimes it happens after skipping a file.

1. Any suggestions for determining what the issue is here?
2. Is there any way to enable retries? Since the whole process fails, I have to run the whole batch which can take a long time.
3. Should I try running phockup on my local Windows machine rather than through the container?