Yes, I pressed 'Cancel'.
Not in the middle of a play-though thanks. I had half my map places "found" vanish when patched... so no messing with patches or 'new formats'.
Download times, I can wait a few more minutes.... and wait until I start a new play-through.
Haven't had this happen, but I HAVE had the tutorial pop-ups (smithing, alchemy, etc.) pop up on chars that have advanced well beyond those tutorials. Dunno what else could have been mismarked, but all quest markers (completed yes/no) seem to be fine, as well as possessions and property (so far). I didn't get power back until Friday, so I've only recently updated and played.