Hi, I have a strange issue concerning the behavior of the Preview app. Normally when I double-click on a file to open it with Preview and then I close the file by hitting the red x and then I click somewhere on the screen the Preview app automatically quits. However when I also have Dropbox running the Preview app stays open in the background/dock. This is only the case when I also have Dropbox running (I guess this started after a certain Dropbox update) and I also had this problem in the past while I was using the Magnet app (from the app store). Does anyone else also have this problem and knows a solution? Thanks in advance and many greets Chris Edit: I am using macOS Mojave 10.14.1 and Dropbox version 61.4.95 (but when I had the same problem while using the Magnet app I was using macOS Sierra/High Sierra).