This has probably been mentioned already, but I can't find another thread on it. Forums are also super slow right now.

The 10,000 seals achievement is being awarded at 5,000 seals. I got the achievement right as I hit my first 5,000 seals, despite the achievement saying I had earned 10,000 already. I can confirm at least 2 other people who have had this issue as well. Minor, but maybe something to fix.