SMB shares go offline until owner password changed in web GUI

I'm having an intermittant issue where my SMB shares are going offline. I've noticed it four times.

1. When I updated from 12.0 BETA 2 to 12.0 BETA 2.1, my SMB shares went offline

2. When I saw my shares were offline, I downgraded from 2.1 to 2.

3. When I upgraded again from 2 to 2.1.

4. When my system unexpectedly rebooted.

When I performed one of these three actions, My SMB shares went offline. 

1. On windows it tells me I have the wrong username and password.

2. On Debian is says access denied.

3. On Ubuntu it says the host is down.

To resolve this issue, I need to go into the GUI and change the password for the owner of the share. I don't need to change the passoword for a different password, I can "change" the password and set the new password to the same password as it is currently.