This is absolutely my fault. I just found the problem and it's entirely embarrassing. I put in the wrong hash for a hardened checkpoint at block 100500.
I will have this fixed tonight and will make up for it tonight (or tomorrow at the latest) with a major update to the wallet and significant improvements to the anonymity.
My apologies for the inconvenience.
-- Hondo
I am making the first tests of a new wallet with some nice anon and performance enhancements right now. These tests are going well. When these complete, I have a few more code changes to insert and then several tests for these changes. Then I have something like 6 deployments to build (2 each of Linux, OS X, and windows). So it looks like I'll most likely have things wrapped up about 24 hours from the time of this post if I can get started early tomorrow night.
-- Hondo