We have identified an issue and the next release will (partially) resolve the problem, meaning that customers can use the outward postcode. For example, for NG11 6FD, user will need to enter only NG11.
You will have to have 2.3.1 or later to see the new Get Started wizard, including this particular hotfix to address this issue. If you're interested in testing, a soft reset (and restore of backup you created beforehand) would do it, assuming you've updated.
Hubs shipped to new users will likely have older firmware for some time to come.
Hmm, yeah I forgot the new wizard does that. I don't think the old one did. So, you'd still need a 2.3.1 hub to get this fix (just not necessarily the very latest, assuming you have an Internet connection). Very early hubs shipped with no firmware, just something that would download the latest during initial setup, but every hub has shipped with some firmware for a while now, so I think it just leaves those as an issue for a while to come yet.
"Partial" solution is in, meaning that user must be aware that only outward postcode can be used. Next release (2.3.2) will have the permanent solution that removes the guest work for the users, without the hub choking up on the inward code.
So i’m in the UK and also struggled with entering post codes. After the latest update the error message still came up. I then tried removing the existing lat and long coords manually ( which I had to enter manually in the first place) and then adding the UK post code which then allowed the UK post code to be accepted.