setfacl on directory seems not working for default permissions on sub directories
Solution 1:
You set the file ACL for /Logs/case1, but not the default ACL. The file ACL isn't inherited, but the default ACL is. To add a default ACL:
setfacl -m g:mygroup:rwx,d:g:mygroup:rwx /Logs/case1
See setfacl.