This is an absolute joke. As many of you probably also have experienced, for some people the game just loves resetting your known DLC progress. This put me off completing Awakening the Nightmare back in the day, as every time we went to do it, it lost track of the progress. It keeps the best time, medal, and high difficulty completed on. But objective trackers and Pheonix logs get wiped. It also wipes some of the bonus objectives on about 3 of the original levels.
After finally learning that HW2 had received its last update, I went on last week and finally decided to work through them, finally getting back all the objectives tracked etc. Everything was looking good, it was keeping the stats between relaunches of the game. Log in this morning to do the final Awakening the Nightmare mission with my friend…
All DLC stats are wiped again.