Invalid argument (22) error which is removed by many retries

[Dominicus1165]

Expectation

rsync runs once and all files are synced without error.

System

• Windows fileshare (no ssh or remote execution of commands)
• Linux Server who executes scripts
• file-list.txt created with find with relative paths on fileshare

file-list.txt

...
./archive.ubuntu.com/ubuntu/dists/jammy/main/i18n/by-hash/SHA1/e8a89f445a82c1b30ca407db84b155e62b53bb11
./archive.ubuntu.com/ubuntu/dists/jammy/main/i18n/by-hash/SHA1/ecc55ab4ab7615f4fb6780413bdd1337200a12c7
./archive.ubuntu.com/ubuntu/dists/jammy/main/i18n/by-hash/SHA1/ecd8c2bf5ac584d83d67e87717f90a136375e38c
./archive.ubuntu.com/ubuntu/dists/jammy/main/i18n/by-hash/SHA1/ed7a92ccad943b2256685e5f2711a0f806263271
...

fileshare="/mnt/fileshare/download"
targetDir="/mnt/fileshare/incremental-update"

rsync -a --files-from=update_list.txt $fileshare $targetDir



# also tried with these flags
-t                        (without -a)
--ignore-missing-args
--from0                   (with a different list of course)
--bwlimit=10000           (does not help and we are talking about 4.5 GB of files daily)

Problem

When running the rsync command, I receive hundreds of errors related only to the hash value entries.
With each subsequent run, I receive fewer and fewer errors until it completes successfully after 3-5 reruns.

# Error message
rsync: [sender] send_files failed to open
"/mnt/fileshare/mirror/archive.ubuntu.com/ubuntu/dists/dists/jammy/main/i18n/by-hash/SHA1/
e8a89f445a82c1b30ca407db84b155e62b53bb11": Invalid argument (22)