After 5-10 minute work in Lightroom, the Del key stops working. Very annoying. I have to click the image on the filmstrip to make the Delete key working. Definitely the filmstrip loses the focus and doesn't receive the Del key event. I have to restart Lightroom to get the Del key working again. It's really annoying to restart Lightroom every 15 minutes...Note: This conversation was created from a reply on: Delete key doesn't work after photo delete, have to click on LR CC again.