delayed disclosure of records of Bozicevich's mental health history.
While the military judge found error in the late discovery of the evidence, she denied repeated mistrial motions made by Bozicevich's civilian defense counsel, Charlie Gittins, choosing to limit the government's ability to counter defense evidence related to the late disclosures. It appears the trial counsel requested a break in the court-martial in order to determine whether to take a government interlocutory appeal to the Army Court of Criminal Appeals. (My guess is such an appeal wouldn't be fruitful for the government.)
Of course, the media doesn't seem to be following this case, so our only sources of information are from an anonymous commenter on CAAFlog, the widow of another soldier killed during a deployment, and the link above.