Firstly Guy, both issues have been resolved so no need to spend any more time on it.

I prob wasnt clear. 1st person tried his Green seed in Blue and got zero balance. His original issue was a 2FA thing that he never set up denying him access to Green, so I suggested restoring in Blue. He eventually fixed the 2FA.

2nd person tried his Cobo seed in Nunchuck and got a zero balance. He then tried it in Blue and this worked. His issue was it was the Cobo setup simply no longer worked.

I now understand its a derivation path thing but it surprised me because I thought most of these well known wallets use compatible paths. I have a pretty rudimentary understanding of derivation paths and thought they were only important to record with mu-sig setups.

Bottom line is its pretty horrible UX when a new user, or any user for that matter types their seed phrase in during recovery and is hit with zero balance. And were also never prompted to note anything other than the seed.

On the positive side when it happens again I'll be able to advise them better.