I took the recent update to 3.4.1 and now cannot open any projects. I can't create new projects. System: Win10 2080ti Intel i7-6800 Symptoms: Clicking on a project that was working before upgrade: spinning 'loading' icon appears, but nothing happens. After a period of time, spinning stops but no project has been opened. Attempt to create new project: same behavior, spinner appears, nothing happens. Closing hub then reopening it, the project title is in list but clicking on it throws error because no project exists at that location; This happens with all projects. no projects can be opened. The above symptoms occur on both editor versions 2019.4, 2021.3 I have tried: Reinstalling Unity Hub Reinstalling Unity Editor Simply restarting machine recreating firewall rules disabling firewall restarting network adapter logging out unity account switching to different unity account removing license Nothing appears in logs when this happens. If I delete the log file, then click on unity hub UI to open project, no logs are generated. Simply nothing happens. I also cannot open my project directly by either: attempting do directly open Unity.exe for the desired editor version OR opening my project and opening a scene file using 'open with -> unity'