Samba share configuration will not save

Installation Home Assistant OS
1

Brand new installation of HA and Samba.
When I click save under the Samba share configuration tab, the changes revert back to the defaults.

any ideas?
remove and reinstall?

2

Can you please post your sanitised and correctly formatted config here?

3

it’s the default, it will not save changes

workgroup: WORKGROUP
username: homeassistant
password: null
interface: ''
allow_hosts:
  - 10.0.0.0/8
  - 172.16.0.0/12
  - 192.168.0.0/16
  - 'fe80::/10'
veto_files:
  - ._*
  - .DS_Store
  - Thumbs.db
  - icon?
  - .Trashes
compatibility_mode: false
4

Try entering a password