I found a feature. When there is 2 or more devices with the same name(device name for the mobile), they wont show up under the correct users account.
We just had a problem with a duplicated mobile name, client logged in and we couldn't see the device but the account was correct(i could see it in the log as logged in with the correct account). I needed to change the default theme to a mobile one, but couldn't.
The problem was fixed when I changed the device name under the bOS app settings and logged out and in again.
But my logic is that if the users (account)name and password is different it shouldn't matter what is the device name.
Customer support service by UserEcho