My MAC is using OS Catalina. I have an issue with the scenekit ql thumbnail extension loading and eating up over 7 GB of my 8.00GB of memory whenever I open up my Dropbox folder. When that happens, I get the spinning ball and eventually the computer just shuts down. Is it possible to safely remove the extension program? I have a companion Mac operating on Sierra with the same Dropbox. It operates flawlessly. Thanks for your help.