Samba share permission problem - Thunar

Hi, nice weekend to everyone

I have a samba running as a domain controller, in which my Synology NAS is a domain member.
In my EOS, I have this entry in my /etc/fstab

// /mnt/externo cifs noauto,x-systemd.automount,x-systemd.mount-timeout=30,_netdev,rw,uid=1000,gid=1000,credentials=/etc/samba/credentials/share,iocharset=utf8,vers=2.0 0 0

I should have read and write permissions to /mnt/externo, but in Thunar, I have only read access, however, inside the already existing folders, I can read and write…

Permissions inside /mnt are the same as inside the existing folders in /mnt/externo

[marcelo@eos mnt]$ ls -lah | grep externo
drwxr-xr-x  2 marcelo marcelo    0 abr 16 17:36 externo

When I go through the path in Thunar smb:// typing my credentials, it works perfectly with read and write access.
Or, when I go through the terminal to /mnt/externo, I have read and write as well…
It also works if I execute Thunar as an administrator using sudo…

It was working before, not sure what could have happened…
Any ideas?

Found a way to fix the permissions in thunar, you need to open /mnt if that is the folder in which your shares are mounted, then press F5.