Had another case of having to force-close Boinc (Version 5.10.30) in the middle of a MAH WU; good news is: It restarted the task, didn't have an error popup for MAH (but one for BOINC; figures ;-p), and since I was using the <checkpoint_debug> tag, I can rest easier KNOWING that MAH checkpoints. (Primegrid doesn't, at least on the tasks I run.)