We have successfully managed to resolve a number of issues without requiring the test network to be reset. Please upgrade to the latest master branch and verify that you can still sync.
Issues Resolved:
1. Replaced Hash Indexes with Ordered Indexes because there are places where we iterate over the Hash Index and the iteration order was not deterministic
2. Fix reference to deleted memory during margin call evaluation
3. Cover some corner cases for rational math overflows
4. Fix for publishing invalid price feeds