I have updated to the newest version at play store.
after update, problems:
1. connection detection weaker
2. cannot delete guests
3. error prompt box for admin " your connection token expiry"
4. show "busy" for other users when the previous user has minimized the app but not yet totally ended the process
5.cannot see usage history for users other than admin. the entire usage list is only admin.
1. provide previous version apk
2. or provide solutions