Can't see my Push 3 SA from Live anymore !

[CostoLulu]

Hello,

A couple weeks back, I subscribed to the beta program to test the new features for Push 3 SA which I very much wanted (track position, collections renaming, macros, etc.)
So I installed Live 12.1b9 and the corresponding Push version and everything was running smooth for me. But then I upgraded them to 12.1b11 and then no more Push in the Live browser so I can't transfer project or samples to and from the Push, and continuous crashes (no full reboot needed or it blackscreened and booted very quickly.)
I was getting a bit mad as I had composed a dozen of new tracks during the beta so if I had to downgrade to stable 12.0.25, I'd lose access to those projects, and I wouldn't like that very much.
So tonight I was ready to downgrade whatever the cost just to be able to use my instrument as in b11 it kept crashing every 30 seconds or so, so I turned the Push on, went to Settings, Software and Check(ed) for update...
Yessss, b12 is out !
So I installed it on the Push, quit Live b11 on the mac, started it again so it would update automatically and voilà, b12 is installed too. So I launch it... and still no Push in the browser.
Nothing has changed on my wi-fi network. I can access push.local from the mac's browser (Opera). I can even connect to Push's access point by wifi, but still no go : can't access Push from Mac's Live 12.1b12's browser.
So I upgraded my Live 12.0 on the Mac to version 12.0.25, and launched it. Same thing : no sign of Push 3 in the browser...
When I was under 12.1b9 for Push, I went to a friend's place, he had Live 12.0 for Windows and I could see my Push in his browser...

Any idea which would magically restore my Push's access without retrograding it to 12 stable ?

[[jur]]

First, you should report this on Centercode, this is the whole point of beta testing
That being said, re-authorizing Live usually fixes this issue.

[CostoLulu]

Will do both, thank you !