I had a unhappy event this afternoon after spending several hours this morning classifying my point cloud (imported SFM .las files), saving regularly, it started getting a little sluggish so I figured it need a break and so did I. So, I shut everything down and restarted my computer while went for a coffee break. Came back started up the some project and ALL my point clouds and regions showed zero points. Wouldn't load. The .las files in the project file are still there with their sizes correct. I can still select the files in the project explorer, but zero points. I'm at my wits end trying to figure this one out. I'd love to know what happened so I can prevent it (hopefully) in the future, but it looks like I'm going to have to redo everything I was working on this morning. TBC 5.51 32gb RAM 1tb SSD