Sorry for the delay in getting back to you all. It wont come as a surprise to you but the app team have confirmed that the fix was not included in the last update 😞 I don't have the details as to why this was not included.
However I have been informed that it will be included in the next update. I should be able to confirm the date of the next release at some point next week. As soon as I know more I will update the thread.
I am so sorry about this, I appreciate that this is very disappointing especially when I confirmed the fix was going live on Wednesday past.
Looks like today's update to the MyBT app (v8.5.10) fixes the mis-reporting of the 2.4 or 5.0GHz network. It's now giving the correct info 👍
Good news 😀