This happens with pants, shirts and jackets, when they got a loose fit and are not at 100% of their length. I didn't notice this myself before, because all my avatar clothes got a very tight fit...
I found more issues while reimplementing properly the bump alpha masks. It will take more time than expected. Do not await for a new release today... If I can't get things to work properly in the next 24 hours, I'll flag 1.23.5.10 as an experimental release and will publish a 1.23.5.11 without Alpha and Tattoo support as a stable release.