The latest Destiny 2 update caused a lot of problems, that's for sure. All the hard-earned currencies and achievements were gone, and normally, people started to panic. Luckily, Bungie acted quickly and they managed to resolve the situation.
The game was shut down for further investigation and it took half a day to fix the problem, but luckily they did fix it. Everyone's progress is back again as well, so that's great to hear.
Bungie nailed it here, well done guys. You can log back in now and continue where you left off before the update rolled out. Phew!