Effective ACL permissions changing permissions

From a bash shell script, I am creating a folder and storing the mysqldump there. I am sure that there is no command related to permissions in my script. To allow an other user to access these files, I have used ACL, but when he tried to access the file, he got permission denied issue, and issue is with effective permissions of ACL. The owner of the directory is ola and new user who is trying to access the folder is uber and folder is gettaxi ### Permissions of Parent directory [/omega/olabooktmp]# getfacl . # file: . # owner: ola # group: ola user::rwx user:uber:rwx group::r-x mask::rwx other::r-x default:user::rwx default:user:uber:rwx default:group::r-x default:mask::rwx default:other::r-x ### Permissions of Child directory [/omega/olabooktemp]# getfacl gettaxi/ # file: gettaxi/ # owner: ola # group: ola user::rwx user:uber:rwx #effective:--- group::r-x #effective:--- mask::--- other::--- default:user::rwx default:user:uber:rwx default:group::r-x default:mask::rwx default:other::r-x I see like for new directory gettaxi mask permissions are mask::---, so I think this is causing issue, but I am unable to understand completely and how to solve this issue. Any suggestions greatly appreicated. Thank you.