I ran into this exact problem this week and Adobe's customer service has been so bad that I am seriously considering trying to find a Lightroom alternative. The worst thing is that most of their staff do not even seem to be aware of the problem. I had a webchat with someone who insisted that my library should be visible within Creative Cloud and I could just migrate it. They then passed me from person to person until eventually I reached somebody who admitted that there curently is not a solution. It is evident from this thread that it has been an issue for some time, so I wouldn't hold your breath for a fix soon. I thought about just putting up with having the seperate accounts, but even this is not really possible as you can only log in to one at a time for all Adobe applications, so you are not able to have Photoshop open on one account and Lightroom on the other, for example. I am now trying the workaround posted by rzaza (thanks by the way), but I wouldn't recommend it as the sync to Lightroom Classic has been going for 2 days and is nowhere near finished. I have a fairly fast connection, so this is obviously due to the transefer rate from Adobe's servers. No ETA or transfer speed information is provided though. My main concern is what happens if my situation changes again (ie. I move to a different workplace or cancel my CC subscription). Most people seem to be under the impression that selecting the option to store your originals locally means you have a backup, but clearly this is only in the most basic sense that you have all your photos dumped in folders, ordered by date only. Having to reorganize all of these files from scratch could literally take some people hundreds of hours of tedious and unnesessary work
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