Just upgraded from 6.9.2 to 6.10 - RC4 and it seems that all my ACLs are broken.
It seems like they are stored and shown but not actually used. Example ACL from one of my directories:
root@nas:/mnt/user# getfacl users
# file: users
# owner: administrator
# group: domain\040admins
user::rwx
user:domain\040admins:rwx
user:domain\040users:r-x
group::rwx
group:administrator:rwx
group:domain\040admins:rwx
group:domain\040users:r-x
mask::rwx
other::---
None of my users except the administrator can access this directory even though they are in the "Domain Users" group. Domain join and user lookup still seems to be working and user is definitley in the according group:
root@nas:/mnt/user# id g0dscookie
uid=1461716048(g0dscookie) gid=1461715457(domain users) groups=1461715457(domain users),[..snip..]
Also I cannot access my Unraid Server via IP nor local domain (i.e. https://nas.example.org:8443) anymore since the nginx config now has a catch-all with return 404 in place. Only [hash].unraid.net has a server block which has access to the Web GUI.
After downgrading ACLs are working again.