like many others, my catalog cannot be updated to the LRC v10. Installing version works. But then it asks for 'updating my catalog' (huge 200k photos - 2.5Go). Shortly after starting the process stops and I have a message with NO error code saying that 'the update cannot be completed'. And that's it !
So now I have a LRC v10 and a catalog not compatible with it.
I NEED to fix this as I've been invited as a photographer by BenQ and Xrite to be the guest star in a webinar about 'color management' (Sep 23rd). Not only I cannot use LR right now(well I can with an empty new catalog), but I will have to explain to subscribers that LRC crashed and cannot be trusted. I LOVE LR. But this is a big problem.
And btw, applying a roll-back would have been a solution but the 'older versions' option has disapeared for the CC app. I'm stucked.
Using Win 10 and LrC 10.4 here. When V 10 came out I had no issue ugrading my 180,000 image catalog. I don't think I have actually seen any other post with an issue like this.
If it were my system, I would check to see if all the drives involved had plenty of available space. The other thing I would try is to reset the LrC preferences and if no joy on that, use the Adobe CC Cleaner app to wipe all LRC stuff off your drive and reinstall.
BTW, the Other Version option is still there for me in Adobe Creative Cloud app. You have to be in the "All Apps" tab a the top of the left hand column to see the three dots at the end of the line for each app.