@C-Beats, just some feedback on the 404 session expired issue you requested. I updated to beta 3 and tried a 'download metadata and media' for my whole collection. I left it overnight as just the metadata download was taking more than 2hrs. When I checked this morning I could see the process had stalled about 1000 items into a roughly 10k item download. No error, just that the download was stalled on a specific item and could not continue. The error counter had 5 entries, 4 were 'file does not exist', the last one being a 404 session expired error. I closed launchbox and restarted, this time only around a dozen items downloaded before it got stuck. I tried a final time and also only got a few more items in before it got stuck on an item again. These were different items each time. Also, I was getting the crash message when I closed launchbox which I guess is the same everyone else was getting. I then installed normal 11.2 over the top and download running fine now, about 3k items in so far.
Hope that helps somehow!!