Hello Adobe, could you please point out, that while using the new tether feature in Lightroom, it is essential, to follow the tether dialog box till the bottom. There you can choose "save copy to camera“.
On a reason shoot i was tethering medium size jpg's because i want the process to be very fast. I was shooting like that many times before, so i overlooked the very tiny checkbox on the bottom of the page. The result was, that Lightroom forced the camera not only to "not" save the medium jpg's to my SD card, but also not save the raws to my CF card. At home i wanted to import the raw files to my computer, but there was nothing one on the cards. I've seen reports on the web, that other people have the same fatal loss of raw date because of that little checkbox, wich is new to Lightroom.
Please try to make public, that your users have to take care of this. It would be sad, if more photographers loos more raw files, clients and money. Thank you.