For some of the bigger, multi file roms/games I use 7z to store them at a higher compression and while they successfully download and do seem to start the unpacking process almost immediately after it starts unpacking it seems to halt and never finish the auto extraction job. I've tried this with a few different archives and on two computers but the results are the same. I'm not really sure if logs are maintained for this add-on if there is I'd be happy to supply more additional information.