I am having a similar problem -- I tried to sign in to Lightroom Mobile. I entered my Adobe ID and password and the dialog went away, but I still see "Get started with Lightroom mobile" and when I select Sync with Lightroom Mobile, the dialog box appears briefly and then goes away. I have tried signing out of Adobe Creative cloud, signing back in, and re-launching Lightroom, but that did not solve the problem. Do I have to uninstall and reinstall Lightroom? Thanks,Michael
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