UPDATE:

Hello community,

At the moment everything seems to work normally...we passed 510+ confirmations and the first mined coins are valid.

Why the chain has stopped, we don't know at the moment, but we know how to fix it (without a Hard fork). But we'll keep an eye on.


Maybe there are other devs who know the answer or that have experienced this strange blockchain stop?


IMPORTANT:
I would ask everyone (with block-stuck wallets) remove the datadir (all files, exclude wallet.dat) and re-sync from the beginning (block 1).