rclone: Problems uploading Time Machine backup to B2 during backup

What is the problem you are having with rclone?

I backup with time machine to a NAS (raspberry pi + usb) and then use rclone to send those backups to B2. I seems like there are errors rclone can’t recover from when a file is getting modified before it gets sent to b2. I’ve attached a log on a run while a TM backup was also happening. Is there any way to mitigate this issue?

What is your rclone version (output from rclone version)

rclone v1.50.2

• os/arch: linux/arm
• go version: go1.13.4

Which OS you are using and how many bits (eg Windows 7, 64 bit)

Raspbian GNU/Linux 10 (buster), 32 bit

Which cloud storage system are you using? (eg Google Drive)

Backblaze B2

The command you were trying to run (eg rclone copy /tmp remote:tmp)

sudo /usr/bin/rclone sync --transfers 32 --log-file ./rclone.log -vv /media/tm backblaze:natebackup

A log from the command with the -vv flag (eg output from rclone -vv copy /tmp remote:tmp)

https://gist.github.com/natebrunette/8f69a019538a76e0e673ef0ede0b5f09