Ok, I’ll try my best to answer your questions (but I’m not very good with the more technical stuff).
I’m using windows vista on an old laptop with a mere 2 gb ram (not much for this sort of software I know, but it’s managed ok with it up to now, though struggles at times).
Daz version 22.214.171.124 standard 32 bit. I’d rather not have to install another version if at all possible. I don’t think my poor old computer could handle any more features.
The figure is the normal genesis that came with Daz, the item hasbeen autofitted and was intended for M4. I think I’ve used smoothnig on this item before without trouble (though I’m not sure). There was only one item being smoothed.
I don’t think I’ve altered settings in smoothing, but don’t know how to check this without activating the smoothing and therefore crashing Daz.
I’ve never turned on interactive update as I don’t really know what it does.
I’ve just tried smoothing with a different item on genesis (a V4 autofitted jacket) and it worked fine. Could this be an item specific problem, I wonder? If so, is there some way of finding out/fixing it?