The install of Lightroom from the Cloud seemed to go just fine. All seems to be working as it should. But I saw the same behavior on my laptop: previous version of lightroom installed from the cloud, when update becomes available, Creative Cloud app shows lightroom as uninstalled, even thought it is working fine. Simply doing the install of the new version from the Cloud went fine, and the previous version didn't have to be un-installed.
I just don't get why the app doesn't seem to know that Lightroom is installed, once an update is released. Photoshop and Bridge show updates available, as they should, on the same machines. Not Lightroom. I guess it might be connected to the fact that Lightroom can still be installed without the cloud.
Keith