If they can predict exactly how long these issues would take, they should be in the stock market and not releasing software. Your assumption that they knew exactly how long it'd take is misguided. They're certainly not going to let the community know about every bump they run into.

If this was stressful for you waiting, imagine what its like for the coders and testers dealing with the issue.

They're not fixing typos here folks. A test cycle takes more than just a few hours and if they find a problem they have to reproduce it, then they have to diagnose it, fix it, unit test and if all has gone well go through another full cycle. Turnaround on a major issue can easily take a week if they find and fix a problem the first go around, longer if they need to iterate or have multiple issues.

Chilax and go do something fun. It'll get here soon enough.