I decided to try with just 5 paths to check if the issue would happen instead of all my folders
[test]
type = union
upstreams = cf:/0-9/01 cf:/0-9/01 cf:/A/A1 cf:/A/A10 cf:/A/A2
Tested all of them with rclone ls, but rclone mount doesn't work
rclone mount test: test -vvv
<7>DEBUG : rclone: Version "v1.62.2" starting with parameters ["rclone" "mount" "test:" "test" "-vvv"]
<7>DEBUG : rclone: systemd logging support activated
<7>DEBUG : Creating backend with remote "test:"
<7>DEBUG : Using config file from "/home/alx/.config/rclone/rclone.conf"
<7>DEBUG : Creating backend with remote "cf:/A/A2"
<7>DEBUG : Creating backend with remote "cf:/A/A1"
<7>DEBUG : Creating backend with remote "cf:/A/A10"
<7>DEBUG : Creating backend with remote "cf:/0-9/01"
<7>DEBUG : Creating backend with remote "cf:/0-9/01"
<7>DEBUG : Creating backend with remote "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/8ft2nlg4uk8dbeqlekmduuuuvg"
<7>DEBUG : Creating backend with remote "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/1ep0c6og6p7pcj5qhqr0or97ng"
<7>DEBUG : Creating backend with remote "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
<7>DEBUG : Resolving service "s3" region "us-east-1"
<7>DEBUG : Resolving service "s3" region "us-east-1"
<7>DEBUG : Resolving service "s3" region "us-east-1"
<7>DEBUG : Creating backend with remote "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
<7>DEBUG : Resolving service "s3" region "us-east-1"
<7>DEBUG : Creating backend with remote "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/uddjaqv4ne0tn15oi6m1u71vug"
<7>DEBUG : Resolving service "s3" region "us-east-1"
<7>DEBUG : fs cache: renaming cache item "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/1ep0c6og6p7pcj5qhqr0or97ng" to be canonical "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/1ep0c6og6p7pcj5qhqr0or97ng"
<7>DEBUG : fs cache: switching user supplied name "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/1ep0c6og6p7pcj5qhqr0or97ng" for canonical name "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/1ep0c6og6p7pcj5qhqr0or97ng"
<7>DEBUG : fs cache: renaming cache item "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/uddjaqv4ne0tn15oi6m1u71vug" to be canonical "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/uddjaqv4ne0tn15oi6m1u71vug"
<7>DEBUG : fs cache: renaming cache item "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/8ft2nlg4uk8dbeqlekmduuuuvg" to be canonical "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/8ft2nlg4uk8dbeqlekmduuuuvg"
<7>DEBUG : fs cache: switching user supplied name "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/uddjaqv4ne0tn15oi6m1u71vug" for canonical name "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/uddjaqv4ne0tn15oi6m1u71vug"
<7>DEBUG : fs cache: switching user supplied name "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/8ft2nlg4uk8dbeqlekmduuuuvg" for canonical name "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/kq8mjrst8pdu7s4ula4kufg96o/8ft2nlg4uk8dbeqlekmduuuuvg"
<7>DEBUG : fs cache: renaming cache item "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58" to be canonical "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
<7>DEBUG : fs cache: renaming cache item "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58" to be canonical "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
<7>DEBUG : fs cache: switching user supplied name "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58" for canonical name "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
<7>DEBUG : fs cache: switching user supplied name "cfcrypt:/lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58" for canonical name "cfcrypt:lt4ae5rbpkflfo50f08qv3r3ac/0qqv95ae82qsqrgbit7fkld844/9gpbtjq1hn38l8asn0c9v44u58"
Failed to create file system for "test:": can't use empty string as a path