Title says it all.  The last two lots I made for distribution, one on 11/5 and one today, package and export as .s3packs with no problem.  People who have downloaded and tried to install them have reported that the lots install with the launcher, but do not show in-game.  I tried installing the lots into a vanilla game and also failed. I've searched Google for a bit and haven't seen a similiar issue out there.  Has anyone else encountered this?