Stuck files in sync from GDRIVE to FTP

I am copying data from some users who are on GDRIVE to an FTP. For this I’m using --drive-impersonate in the source location “GDRIVE”. But in certain files to copy to. At that time, checking the network flow is also stopped. Does anyone know what it can be? Follow the commands I’m using.

rclone -vv --drive-impersonate --transfers=2 --bwlimit 8M --fast-list --drive-acknowledge-abuse sync gdrive2:

I would guess the FTP server isn’t serving the files for some reason. rclone will timeout eventually I think and retry, or you can quit and retry the sync.