Files disappear when copied to mounted davfs drive, but I can see them from other devices

I have an aws Ubuntu and I mount an external drive to it, like this:

sudo mount -t davfs -o noexec http://www.whatever:port//folder/another_folder/another_folder2/ /mnt/another_folder2

After then I chown and chmod the folder so I can edit it

But what ever I put in this folder disappears. I cannot see it from this Ubuntu machine. However, when I mount the drive to my PC I see whatever I put there from Ubuntu.

I have uncommented davfs2.conf :

use_locks       0
if_match_bug    1
drop_weak_etags 0

I have tried to edit fstab, but to be honest I do not know how should it be:

LABEL=cloudimg-rootfs2   /       davfs  rw,user,umask=000        0 0

I found some kind of my files in lost+found in the mounted folder (they had some random id attached to them)

Is there a way to use mounted drive appropriately?