I've have LR CC installed since a few hours after it was released, and have had zero issues with it, even when leaving it running for days on end. But today, I've been working away and noticed that LR seemed a little sluggish. To that end, I turned off Syncing with LR Mobile and Address Lookup, and that quickly improved the situation. However, if I walk away from the computer for a few minutes, and come back, LR is frozen! The OS is alive and well, but if have to Force Quit LR. It doesn't matter which module I'm in, or what I'm doing, walking away for 2 or 3 minutes, causes it to freeze. I've just re-enabled Syncing and am now attempting to see if this resolves the issue. Has anyone else experienced this? Maybe I'll turn off the Collections that are syncing, and see if that makes any difference, if I also turn off Syncing.