OK, I grabbed the new Hub and it works, but I noticed something strange...
I noticed the sync symbol shows up and it does eventually sync while the Hub still running, takes a while, but it does it...no more having to shut down and re-start.
BUT...and here's the weird thing:
I captured #1 on Donkey Kong Jr. - The website has BOB at 101,000 as #1 on the marquee, but the recent activity correctly gives me first place, as does the hub and C4A front-end. AND...the Hub...well, it shows me as #1, but then shows Rank #0 and my same score!!
EDIT: I'm an idiot...the marquee is Donkey Kong, not Donkey Kong Jr. The Marquee is right. I am listed #1 on the Donkey Kong Jr. marquee on the website.
But still, the Rank #0 thing is happening in the Hub.
I know what is going on...because when you are NOT in first place, it shows the score of the rank above you.
However, there is no-one above you when you are Rank #1 - but it's still TRYING to show that score above you, hence the Rank #0 showing up.
Not a huge issue, but it looks weird!
Still, of course, does not directly launch MAME, but I am gathering that is more a thing for Skeezix to work out on a new release of C4A...am I right?