Just tried the new version of DK, and there seems to still be a problem. Not sure if it is on my end or not, but maybe you could give it a try.
When DK is first started, the toggle snap feature works just great. But when I load a rom, and then exit back to DK, the toggle snap stops working. It will start working again only if you exit DK and restart it.
Let me know if it works on your end, maybe something is not configured properly on my cab.
Thanks,
Terry