Checking for dock firmware update doesn't find available update

I’m using the beta (2.2.2) firmware for my remotes.

For one of my remotes I was previously using the stable versions and was also able to update the dock firmware to 0.10 .0 using that.

For the other remote, I upgraded straight to the beta (it’s been in it’s box for quite a while). I have added the dock it was supplied with to the network and paired it to the remote. However, when checking for an update for the dock, it doesn’t find one and so is currently using 0.9.2.

Anyone any ideas how to get it to find the updated firmware so that it can be installed?