Had a similar issue in Ohio happen a few times once it hit 1,000,000,000. Only affected certain places though, grocery store was down while the gas station was up.I wonder if it is NY. Only saying that because yesterday afternoon I was in the store and a lady was buying tickets and the clerk said there was something wrong with the machine and she would have to enter the lady's number choices manually.
FWIW: I would seriously contemplate taking the annuity over the lump sum.
If what I read was correct the annuity would be ~45,000,000 a year for 30 years (starts at 20M the first year and goes up), not certain if that accounted for all taxes though. I think I could manage with 1.368B over 30 years vice 668.9M right now.