Is tonscan live rn? Can't find latest tx on it while those tx can be found via APIs and other explorers

yes

I noticed the same and for some reason my own TON node also went out of sync

yup it's a bit wired everywhere. I found out those missing tx can be found via hash on tonscan but can't be found via address. And openmask's RPC cannot send tx properly sometimes. and fragment is listing sold numbers in the for sale section