I have been running SGP on two rigs for a few weeks, slowly completing two multi-target sequences. Both systems (one in a ROR obsy) and the other in the garden, have worked well with the latest 64-bit beta. The last target has an end time, just before dawn, at which the equipment warms up, parks and shuts down.
Last night was an exception. Early morning fog caused one sequence to abort before time limit, but, unlike all the other nights, although the mount was parked, the roof closed and the camera was warmed up, all the equipment was sill powered.
I am not entirely sure what occurred but it seems that it was still in a recovery loop when I woke up and the software had failed to notice that the target end time had passed.