Bech32 is an address format that was only recently proposed. While its design had input from multiple wallet authors, it is way too early to say anything about adoption.
It is important to realize that there is no hurry about this. Every usable address type is available through embedding in P2SH, which is compatible with every wallet created the past few ...
There are multiple questions being asked here.
Firstly, some background info. BIP39 is a standard that includes word lists.
The English one can be found at https://github.com/bitcoin/bips/blob/master/bip-0039/english.txt
What is a mnemonic frequency analysis?
This is a fancy way of them saying that they figured out the minimum number of letters they ...
The only reason I can think of that would result in the above with a valid OTP seed is invalid OTP settings (but default should work for Google Auth) OR incorrect time on the device OR invalid time (drifted) on the GreenAddress service clock.
I checked for the last one personally and the services clock is fine: in my experience most of the time is time/...
On the top right corner of GreenBits there's a menu with a number of entries: the first one is named "Settings" and we should select that, then "Info & settings" and then you can change the fiat currency, the bitcoin denomination as well as your preferred exchange if available.